What color is #10331B?

#10331B is a very dark green. In RGB it is rgb(16, 51, 27), and in HSL hsl(139, 52%, 13%).

Is #10331B accessible as text?

On white, #10331B has a contrast ratio of 13.89:1 (passes WCAG AA for body text); on black it is 1.51:1 (fails). For text placed on #10331B, use white for the best readability.

What is the closest Tailwind color to #10331B?

The nearest Tailwind CSS token is green-950 (#032E15).

What colors go well with #10331B?

#10331B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #321027. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #10331B below.

Is #10331B good for buttons?

#10331B works well for buttons and highlights, but use white text on #10331B — black text only reaches 1.51:1, below the 4.5:1 needed for normal-size labels.

Is #10331B the same as CSS darkslategray?

No — #10331B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#10331B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #10331B

Not just a swatch — here's how #10331B works with other colors. Named schemes with #10331B in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #10331B Secondary #4B6C3C Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

Sacramento Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Vintage Leather Lead · 5 colors

Lead #10331B Secondary #754E1B Surface #E5DBC0 Accent #3C5140 Anchor #5B2321

Sacramento Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Japanese Sand Base · 5 colors

Base #10331B Surface #EEEADC Highlight #F5F1E7 Secondary #B6B09F Ink #2B2723

Sacramento Green sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Luxury Packaging Feature · 5 colors

Feature #10331B Anchor #141210 Accent #BFA74B Secondary #222C24 Surface #F1EDE3

Sacramento Green carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #10331B Secondary #475349 Support #989286 Ink #17140F

Sacramento Green is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Sacramento Green carrying the quiet middle.

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Color Lab

How #10331B actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 47/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 69/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 70/100

High

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 39/100

Low

A faint retro warmth without tipping into sepia.

Luxury 71/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 23/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 28/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 48/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #10331B

For UI

For branding

For interior

For fashion

People also use #10331B with

Castleton Green Sacramento Green Deep Purple Platinum Hunter Green

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

Body text Passes on white at 16px and above. Pass

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 13.9:1. Use

Subtle surface Use #C2E3CD for cards and hover fills. Tint 80

Avoid beside #103226 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #10331B at work across the surfaces designers actually ship.

Website / UI

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Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #10331B;
  --color-base-rgb: 16 51 27;
  --color-base-oklch: oklch(28.8% 0.060 151.2);
  --color-50: #F3FCF6;
  --color-100: #DFF6E6;
  --color-200: #C1EBCE;
  --color-300: #96D9AB;
  --color-400: #6EC489;
  --color-500: #4DA86A;
  --color-600: #418155;
  --color-700: #325C40;
  --color-800: #243D2C;
  --color-900: #18261C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  sacramento-green: {
    50: '#F3FCF6',
    100: '#DFF6E6',
    200: '#C1EBCE',
    300: '#96D9AB',
    400: '#6EC489',
    500: '#4DA86A',
    600: '#418155',
    700: '#325C40',
    800: '#243D2C',
    900: '#18261C',
  },
}

$base: #10331B;
$base-ink: #FFFFFF;
$base-50: #F3FCF6;
$base-100: #DFF6E6;
$base-200: #C1EBCE;
$base-300: #96D9AB;
$base-400: #6EC489;
$base-500: #4DA86A;
$base-600: #418155;
$base-700: #325C40;
$base-800: #243D2C;
$base-900: #18261C;
$base-hover: #0D2815;
$base-subtle: #A2D7B3;

{
    "color": {
        "base": {
            "value": "#10331B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCF6",
                "type": "color"
            },
            "100": {
                "value": "#DFF6E6",
                "type": "color"
            },
            "200": {
                "value": "#C1EBCE",
                "type": "color"
            },
            "300": {
                "value": "#96D9AB",
                "type": "color"
            },
            "400": {
                "value": "#6EC489",
                "type": "color"
            },
            "500": {
                "value": "#4DA86A",
                "type": "color"
            },
            "600": {
                "value": "#418155",
                "type": "color"
            },
            "700": {
                "value": "#325C40",
                "type": "color"
            },
            "800": {
                "value": "#243D2C",
                "type": "color"
            },
            "900": {
                "value": "#18261C",
                "type": "color"
            }
        }
    }
}

Palettes built on #10331B

Color Lab

Pairs with #10331B

UI roles & guardrails

In real applications

Scales

Every model

Export