What color is #150A21?

#150A21 is a very dark violet. In RGB it is rgb(21, 10, 33), and in HSL hsl(269, 53%, 8%).

Is #150A21 accessible as text?

On white, #150A21 has a contrast ratio of 19.14:1 (passes WCAG AA for body text); on black it is 1.10:1 (fails). For text placed on #150A21, use white for the best readability.

What is the closest Tailwind color to #150A21?

The nearest Tailwind CSS token is mauve-900 (#1D161E).

What colors go well with #150A21?

#150A21 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #151F0A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #150A21 below.

Is #150A21 good for buttons?

#150A21 works well for buttons and highlights, but use white text on #150A21 — black text only reaches 1.10:1, below the 4.5:1 needed for normal-size labels.

Is #150A21 the same as CSS midnightblue?

No — #150A21 is not the CSS named color midnightblue, but midnightblue (#191970) 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.

#150A21 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #150A21

Not just a swatch — here's how #150A21 works with other colors. Named schemes with #150A21 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #150A21 Secondary #7E4631 Surface #EDD8C1 Accent #355248 Anchor #592236

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 #150A21 Surface #F2E8DD Highlight #F8F0E7 Secondary #BDADA1 Ink #2C2723

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 #150A21 Anchor #141210 Accent #D99855 Secondary #2B2731 Surface #F3ECE3

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 #F8F4EF Accent #150A21 Secondary #332F38 Support #9C9088 Ink #18140F

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.

Berry & Cream Lead · 5 colors

Lead #150A21 Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C7 Secondary #332B2F

Jet Black sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Build a working theme in the generator →

Color Lab

How #150A21 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 46/100

Neutral

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

Softness 19/100

Very low

Firm and assertive — carries weight and contrast.

Depth 79/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 25/100

Low

A faint retro warmth without tipping into sepia.

Luxury 79/100

High

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

Brand distinctiveness 18/100

Very low

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

UI accent fit 8/100

Very low

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

Surface fit 59/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 94/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #150A21

For UI

For branding

For interior

For fashion

People also use #150A21 with

Navy Graphite Gainsboro Onyx

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 19.1:1. Use

Subtle surface Use #CFBEE2 for cards and hover fills. Tint 80

Avoid beside #1B0A1F — 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 #150A21 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: #150A21;
  --color-base-rgb: 21 10 33;
  --color-base-oklch: oklch(17.5% 0.048 304.0);
  --color-50: #F7F3FC;
  --color-100: #EADFF6;
  --color-200: #D5C1EC;
  --color-300: #B695DA;
  --color-400: #986DC5;
  --color-500: #794CA9;
  --color-600: #604082;
  --color-700: #47325D;
  --color-800: #30243D;
  --color-900: #1E1726;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#F7F3FC',
    100: '#EADFF6',
    200: '#D5C1EC',
    300: '#B695DA',
    400: '#986DC5',
    500: '#794CA9',
    600: '#604082',
    700: '#47325D',
    800: '#30243D',
    900: '#1E1726',
  },
}

$base: #150A21;
$base-ink: #FFFFFF;
$base-50: #F7F3FC;
$base-100: #EADFF6;
$base-200: #D5C1EC;
$base-300: #B695DA;
$base-400: #986DC5;
$base-500: #794CA9;
$base-600: #604082;
$base-700: #47325D;
$base-800: #30243D;
$base-900: #1E1726;
$base-hover: #100819;
$base-subtle: #B89CD5;

{
    "color": {
        "base": {
            "value": "#150A21",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F3FC",
                "type": "color"
            },
            "100": {
                "value": "#EADFF6",
                "type": "color"
            },
            "200": {
                "value": "#D5C1EC",
                "type": "color"
            },
            "300": {
                "value": "#B695DA",
                "type": "color"
            },
            "400": {
                "value": "#986DC5",
                "type": "color"
            },
            "500": {
                "value": "#794CA9",
                "type": "color"
            },
            "600": {
                "value": "#604082",
                "type": "color"
            },
            "700": {
                "value": "#47325D",
                "type": "color"
            },
            "800": {
                "value": "#30243D",
                "type": "color"
            },
            "900": {
                "value": "#1E1726",
                "type": "color"
            }
        }
    }
}

Palettes built on #150A21

Color Lab

Pairs with #150A21

UI roles & guardrails

In real applications

Scales

Every model

Export