What color is #150403?

#150403 is a very dark low-chroma warm gray with a subtle warm cast. In RGB it is rgb(21, 4, 3), and in HSL hsl(3, 75%, 5%).

Is #150403 accessible as text?

On white, #150403 has a contrast ratio of 19.99:1 (passes WCAG AA for body text); on black it is 1.05:1 (fails). For text placed on #150403, use white for the best readability.

What is the closest Tailwind color to #150403?

The nearest Tailwind CSS token is stone-950 (#0C0A09).

What colors go well with #150403?

As a neutral, #150403 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 #150403 the same as CSS black?

No — #150403 is not the CSS named color black, but black (#000000) is the closest CSS named color.

#150403 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #150403

Not just a swatch — here's how #150403 works with other colors. Named schemes with #150403 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #150403 Secondary #7B4927 Surface #EAD9C0 Accent #43503A Anchor #5A222E

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.

Warm Autumn Interior Dominant · 5 colors

Dominant #150403 Secondary #B76325 Accent #777743 Surface #F4EBDD Anchor #3B2A21

This palette keeps Jet Black as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Japanese Sand Base · 5 colors

Base #150403 Surface #F0E9DC Highlight #F7F1E7 Secondary #BBAEA0 Ink #2B2723

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 #150403 Anchor #141210 Accent #D09E4D Secondary #322523 Surface #F3EDE3

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 #F7F4EF Accent #150403 Secondary #2F2726 Support #9B9186 Ink #17140F

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 #150403 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 60/100

Neutral

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

Softness 16/100

Very low

Firm and assertive — carries weight and contrast.

Depth 81/100

Very high

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

Naturalness 43/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 80/100

Very 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 5/100

Very low

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

Surface fit 65/100

High

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

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #150403

For UI

For branding

For interior

For fashion

People also use #150403 with

Oxblood Jet Black Gainsboro Espresso

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 20.0:1. Use

Subtle surface Use #E9B7B4 for cards and hover fills. Tint 80

Avoid beside #160B03 — 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 #150403 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: #150403;
  --color-base-rgb: 21 4 3;
  --color-base-oklch: oklch(14.0% 0.035 28.0);
  --color-50: #FEF2F1;
  --color-100: #FBDCDA;
  --color-200: #F5BBB8;
  --color-300: #E88C87;
  --color-400: #D7615B;
  --color-500: #BC3F38;
  --color-600: #903732;
  --color-700: #662C29;
  --color-800: #42201E;
  --color-900: #291514;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#FEF2F1',
    100: '#FBDCDA',
    200: '#F5BBB8',
    300: '#E88C87',
    400: '#D7615B',
    500: '#BC3F38',
    600: '#903732',
    700: '#662C29',
    800: '#42201E',
    900: '#291514',
  },
}

$base: #150403;
$base-ink: #FFFFFF;
$base-50: #FEF2F1;
$base-100: #FBDCDA;
$base-200: #F5BBB8;
$base-300: #E88C87;
$base-400: #D7615B;
$base-500: #BC3F38;
$base-600: #903732;
$base-700: #662C29;
$base-800: #42201E;
$base-900: #291514;
$base-hover: #120303;
$base-subtle: #E0918D;

{
    "color": {
        "base": {
            "value": "#150403",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF2F1",
                "type": "color"
            },
            "100": {
                "value": "#FBDCDA",
                "type": "color"
            },
            "200": {
                "value": "#F5BBB8",
                "type": "color"
            },
            "300": {
                "value": "#E88C87",
                "type": "color"
            },
            "400": {
                "value": "#D7615B",
                "type": "color"
            },
            "500": {
                "value": "#BC3F38",
                "type": "color"
            },
            "600": {
                "value": "#903732",
                "type": "color"
            },
            "700": {
                "value": "#662C29",
                "type": "color"
            },
            "800": {
                "value": "#42201E",
                "type": "color"
            },
            "900": {
                "value": "#291514",
                "type": "color"
            }
        }
    }
}

Palettes built on #150403

Color Lab

Pairs with #150403

UI roles & guardrails

In real applications

Scales

Every model

Export