What color is #150503?

#150503 is a very dark low-chroma warm gray with a subtle warm cast. In RGB it is rgb(21, 5, 3), and in HSL hsl(7, 75%, 5%).

Is #150503 accessible as text?

On white, #150503 has a contrast ratio of 19.91:1 (passes WCAG AA for body text); on black it is 1.05:1 (fails). For text placed on #150503, use white for the best readability.

What is the closest Tailwind color to #150503?

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

What colors go well with #150503?

As a neutral, #150503 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 #150503 the same as CSS black?

No — #150503 is not the CSS named color black, but black (#000000) is the closest CSS named color.

#150503 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #150503

Not just a swatch — here's how #150503 works with other colors. Named schemes with #150503 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #150503 Secondary #7B4927 Surface #EAD9C0 Accent #42503A Anchor #5A222D

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 #150503 Secondary #B76324 Accent #777743 Surface #F4ECDD Anchor #3B2A20

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 #150503 Surface #F0E9DC Highlight #F7F1E7 Secondary #BBAE9F 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 #150503 Anchor #141210 Accent #D09E4D Secondary #322523 Surface #F2EDE3

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 #150503 Secondary #2F2826 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.

Build a working theme in the generator →

Color Lab

How #150503 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 59/100

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 44/100

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

High

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

Brand distinctiveness 12/100

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 66/100

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 #150503

For UI

For branding

For interior

For fashion

People also use #150503 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 19.9:1. Use

Subtle surface Use #E9BAB4 for cards and hover fills. Tint 80

Avoid beside #160C03 — 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 #150503 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: #150503;
  --color-base-rgb: 21 5 3;
  --color-base-oklch: oklch(14.4% 0.032 32.9);
  --color-50: #FEF3F1;
  --color-100: #FBDEDA;
  --color-200: #F5BFB8;
  --color-300: #E89287;
  --color-400: #D7695B;
  --color-500: #BC4838;
  --color-600: #903D32;
  --color-700: #663029;
  --color-800: #42231E;
  --color-900: #291714;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#FEF3F1',
    100: '#FBDEDA',
    200: '#F5BFB8',
    300: '#E89287',
    400: '#D7695B',
    500: '#BC4838',
    600: '#903D32',
    700: '#663029',
    800: '#42231E',
    900: '#291714',
  },
}

$base: #150503;
$base-ink: #FFFFFF;
$base-50: #FEF3F1;
$base-100: #FBDEDA;
$base-200: #F5BFB8;
$base-300: #E89287;
$base-400: #D7695B;
$base-500: #BC4838;
$base-600: #903D32;
$base-700: #663029;
$base-800: #42231E;
$base-900: #291714;
$base-hover: #120403;
$base-subtle: #E0978D;

{
    "color": {
        "base": {
            "value": "#150503",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF3F1",
                "type": "color"
            },
            "100": {
                "value": "#FBDEDA",
                "type": "color"
            },
            "200": {
                "value": "#F5BFB8",
                "type": "color"
            },
            "300": {
                "value": "#E89287",
                "type": "color"
            },
            "400": {
                "value": "#D7695B",
                "type": "color"
            },
            "500": {
                "value": "#BC4838",
                "type": "color"
            },
            "600": {
                "value": "#903D32",
                "type": "color"
            },
            "700": {
                "value": "#663029",
                "type": "color"
            },
            "800": {
                "value": "#42231E",
                "type": "color"
            },
            "900": {
                "value": "#291714",
                "type": "color"
            }
        }
    }
}

Palettes built on #150503

Color Lab

Pairs with #150503

UI roles & guardrails

In real applications

Scales

Every model

Export