What color is #03100F?

#03100F is a very dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(3, 16, 15), and in HSL hsl(175, 68%, 4%).

Is #03100F accessible as text?

On white, #03100F has a contrast ratio of 19.36:1 (passes WCAG AA for body text); on black it is 1.08:1 (fails). For text placed on #03100F, use white for the best readability.

What is the closest Tailwind color to #03100F?

The nearest Tailwind CSS token is neutral-950 (#0A0A0A).

What colors go well with #03100F?

As a neutral, #03100F 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 #03100F the same as CSS black?

No — #03100F is not the CSS named color black, but black (#000000) is the closest CSS named color.

#03100F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #03100F

Not just a swatch — here's how #03100F works with other colors. Named schemes with #03100F in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #03100F Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #1E2C2B

Jet Black is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Jet Black.

Vintage Leather Lead · 5 colors

Lead #03100F Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #552341

Jet Black 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 #03100F Surface #EDEADC Highlight #F5F2E7 Secondary #B5B19F Ink #2A2723

Jet Black 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 #03100F Anchor #141210 Accent #B9A94D Secondary #1D2C2B Surface #F1EDE3

Jet Black 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 #F6F4EF Accent #03100F Secondary #2A2F2E Support #979286 Ink #16140F

Jet Black 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 Jet Black carrying the quiet middle.

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Color Lab

How #03100F 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 45/100

Neutral

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

Softness 18/100

Very low

Firm and assertive — carries weight and contrast.

Depth 79/100

High

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

Naturalness 7/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 17/100

Very low

Clean and current — no dusty, aged cast.

Luxury 77/100

High

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

Brand distinctiveness 8/100

Very low

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

UI accent fit 5/100

Very low

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

Surface fit 68/100

High

Calm enough for large fills — backgrounds, cards, sections.

Print safety 95/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #03100F

For UI

For branding

For interior

For fashion

People also use #03100F with

Sacramento Green Jet Black 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 19.4:1. Use

Subtle surface Use #B6E6E2 for cards and hover fills. Tint 80

Avoid beside #030E11 — 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 #03100F 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: #03100F;
  --color-base-rgb: 3 16 15;
  --color-base-oklch: oklch(15.9% 0.021 189.5);
  --color-50: #F2FDFC;
  --color-100: #DCF9F7;
  --color-200: #BBF2ED;
  --color-300: #8CE3DC;
  --color-400: #61D1C8;
  --color-500: #3FB6AC;
  --color-600: #378B84;
  --color-700: #2C635E;
  --color-800: #20413E;
  --color-900: #152826;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#F2FDFC',
    100: '#DCF9F7',
    200: '#BBF2ED',
    300: '#8CE3DC',
    400: '#61D1C8',
    500: '#3FB6AC',
    600: '#378B84',
    700: '#2C635E',
    800: '#20413E',
    900: '#152826',
  },
}

$base: #03100F;
$base-ink: #FFFFFF;
$base-50: #F2FDFC;
$base-100: #DCF9F7;
$base-200: #BBF2ED;
$base-300: #8CE3DC;
$base-400: #61D1C8;
$base-500: #3FB6AC;
$base-600: #378B84;
$base-700: #2C635E;
$base-800: #20413E;
$base-900: #152826;
$base-hover: #030E0D;
$base-subtle: #90DCD5;

{
    "color": {
        "base": {
            "value": "#03100F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDFC",
                "type": "color"
            },
            "100": {
                "value": "#DCF9F7",
                "type": "color"
            },
            "200": {
                "value": "#BBF2ED",
                "type": "color"
            },
            "300": {
                "value": "#8CE3DC",
                "type": "color"
            },
            "400": {
                "value": "#61D1C8",
                "type": "color"
            },
            "500": {
                "value": "#3FB6AC",
                "type": "color"
            },
            "600": {
                "value": "#378B84",
                "type": "color"
            },
            "700": {
                "value": "#2C635E",
                "type": "color"
            },
            "800": {
                "value": "#20413E",
                "type": "color"
            },
            "900": {
                "value": "#152826",
                "type": "color"
            }
        }
    }
}

Palettes built on #03100F

Color Lab

Pairs with #03100F

UI roles & guardrails

In real applications

Scales

Every model

Export