What color is #0B3023?

#0B3023 is a very dark teal-green. In RGB it is rgb(11, 48, 35), and in HSL hsl(159, 63%, 12%).

Is #0B3023 accessible as text?

On white, #0B3023 has a contrast ratio of 14.37:1 (passes WCAG AA for body text); on black it is 1.46:1 (fails). For text placed on #0B3023, use white for the best readability.

What is the closest Tailwind color to #0B3023?

The nearest Tailwind CSS token is emerald-950 (#002C22).

What colors go well with #0B3023?

#0B3023 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #320B19. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0B3023 below.

Is #0B3023 good for buttons?

#0B3023 works well for buttons and highlights, but use white text on #0B3023 — black text only reaches 1.46:1, below the 4.5:1 needed for normal-size labels.

Is #0B3023 the same as CSS darkslategray?

No — #0B3023 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.

#0B3023 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0B3023

Not just a swatch — here's how #0B3023 works with other colors. Named schemes with #0B3023 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0B3023 Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3548

Sacramento Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #0B3023 Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Sacramento Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #0B3023 Secondary #744F1A Surface #E5DBC0 Accent #3B5141 Anchor #5B2320

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.

Luxury Packaging Feature · 5 colors

Feature #0B3023 Anchor #141210 Accent #BDA84C Secondary #202C27 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 #0B3023 Secondary #44504B 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.

Build a working theme in the generator →

Color Lab

How #0B3023 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 44/100

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 39/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 33/100

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 19/100

Very low

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

UI accent fit 24/100

Low

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

Surface fit 52/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 91/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0B3023

For UI

For branding

For interior

For fashion

People also use #0B3023 with

Castleton Green Graphite Platinum Dark Slate Gray

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 14.4:1. Use

Subtle surface Use #BEE6D8 for cards and hover fills. Tint 80

Avoid beside #0B3231 — 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 #0B3023 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: #0B3023;
  --color-base-rgb: 11 48 35;
  --color-base-oklch: oklch(27.9% 0.048 166.1);
  --color-50: #F2FDF9;
  --color-100: #DDF8EF;
  --color-200: #BDF0DE;
  --color-300: #8FE0C4;
  --color-400: #65CDA9;
  --color-500: #43B28B;
  --color-600: #3A886D;
  --color-700: #2E614F;
  --color-800: #214035;
  --color-900: #162721;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  sacramento-green: {
    50: '#F2FDF9',
    100: '#DDF8EF',
    200: '#BDF0DE',
    300: '#8FE0C4',
    400: '#65CDA9',
    500: '#43B28B',
    600: '#3A886D',
    700: '#2E614F',
    800: '#214035',
    900: '#162721',
  },
}

$base: #0B3023;
$base-ink: #FFFFFF;
$base-50: #F2FDF9;
$base-100: #DDF8EF;
$base-200: #BDF0DE;
$base-300: #8FE0C4;
$base-400: #65CDA9;
$base-500: #43B28B;
$base-600: #3A886D;
$base-700: #2E614F;
$base-800: #214035;
$base-900: #162721;
$base-hover: #09281D;
$base-subtle: #9BDCC5;

{
    "color": {
        "base": {
            "value": "#0B3023",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDF9",
                "type": "color"
            },
            "100": {
                "value": "#DDF8EF",
                "type": "color"
            },
            "200": {
                "value": "#BDF0DE",
                "type": "color"
            },
            "300": {
                "value": "#8FE0C4",
                "type": "color"
            },
            "400": {
                "value": "#65CDA9",
                "type": "color"
            },
            "500": {
                "value": "#43B28B",
                "type": "color"
            },
            "600": {
                "value": "#3A886D",
                "type": "color"
            },
            "700": {
                "value": "#2E614F",
                "type": "color"
            },
            "800": {
                "value": "#214035",
                "type": "color"
            },
            "900": {
                "value": "#162721",
                "type": "color"
            }
        }
    }
}