What color is #313B28?

#313B28 is a dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(49, 59, 40), and in HSL hsl(92, 19%, 19%).

Is #313B28 accessible as text?

On white, #313B28 has a contrast ratio of 11.75:1 (passes WCAG AA for body text); on black it is 1.79:1 (fails). For text placed on #313B28, use white for the best readability.

What is the closest Tailwind color to #313B28?

The nearest Tailwind CSS token is stone-700 (#44403B).

What colors go well with #313B28?

As a neutral, #313B28 pairs cleanly with white, off-white and light grays for text, and sits under accent hues like blue, violet, emerald or warm orange — use it as a dark surface or high-contrast base and let the accent carry the color.

Is #313B28 the same as CSS darkslategray?

No — #313B28 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.

#313B28 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #313B28

Not just a swatch — here's how #313B28 works with other colors. Named schemes with #313B28 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #313B28 Secondary #4E6B3A Accent #AF6A00 Surface #EFE9D6 Anchor #3D2F21

Onyx 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 #313B28 Secondary #764D1D Surface #E6DBC0 Accent #3D513F Anchor #5B2323

Onyx 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 #313B28 Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F Ink #2B2723

Onyx 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 #313B28 Anchor #141210 Accent #C2A54B Secondary #252B21 Surface #F2EDE3

Onyx 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 #313B28 Secondary #5A5E57 Support #999286 Ink #17140F

Onyx 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 Onyx carrying the quiet middle.

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Color Lab

How #313B28 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 52/100

Neutral

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

High

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

Naturalness 51/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 40/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

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

Brand distinctiveness 13/100

Very low

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

UI accent fit 33/100

Low

Workable accent with care around contrast.

Surface fit 53/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 92/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #313B28

For UI

For branding

For interior

For fashion

People also use #313B28 with

Army Green Bottle Green Gunmetal Gray Platinum

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 11.8:1. Use

Subtle surface Use #D5DBD0 for cards and hover fills. Tint 80

Avoid beside #2A3A27 — 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 #313B28 at work across the surfaces designers actually ship.

Website / UI

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Dashboard

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$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

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Packaging

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250 ml

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Export

:root {
  --color-base: #313B28;
  --color-base-rgb: 49 59 40;
  --color-base-oklch: oklch(33.7% 0.035 130.6);
  --color-50: #F7F9F6;
  --color-100: #EAEFE7;
  --color-200: #D6DECE;
  --color-300: #B7C4AB;
  --color-400: #98A989;
  --color-500: #798B6A;
  --color-600: #606D55;
  --color-700: #474F40;
  --color-800: #30352C;
  --color-900: #1E211C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  onyx: {
    50: '#F7F9F6',
    100: '#EAEFE7',
    200: '#D6DECE',
    300: '#B7C4AB',
    400: '#98A989',
    500: '#798B6A',
    600: '#606D55',
    700: '#474F40',
    800: '#30352C',
    900: '#1E211C',
  },
}

$base: #313B28;
$base-ink: #FFFFFF;
$base-50: #F7F9F6;
$base-100: #EAEFE7;
$base-200: #D6DECE;
$base-300: #B7C4AB;
$base-400: #98A989;
$base-500: #798B6A;
$base-600: #606D55;
$base-700: #474F40;
$base-800: #30352C;
$base-900: #1E211C;
$base-hover: #262E1F;
$base-subtle: #C0CAB8;

{
    "color": {
        "base": {
            "value": "#313B28",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F9F6",
                "type": "color"
            },
            "100": {
                "value": "#EAEFE7",
                "type": "color"
            },
            "200": {
                "value": "#D6DECE",
                "type": "color"
            },
            "300": {
                "value": "#B7C4AB",
                "type": "color"
            },
            "400": {
                "value": "#98A989",
                "type": "color"
            },
            "500": {
                "value": "#798B6A",
                "type": "color"
            },
            "600": {
                "value": "#606D55",
                "type": "color"
            },
            "700": {
                "value": "#474F40",
                "type": "color"
            },
            "800": {
                "value": "#30352C",
                "type": "color"
            },
            "900": {
                "value": "#1E211C",
                "type": "color"
            }
        }
    }
}

Palettes built on #313B28

Color Lab

Pairs with #313B28

UI roles & guardrails

In real applications

Scales

Every model

Export