What color is #151A28?

#151A28 is a very dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(21, 26, 40), and in HSL hsl(224, 31%, 12%).

Is #151A28 accessible as text?

On white, #151A28 has a contrast ratio of 17.35:1 (passes WCAG AA for body text); on black it is 1.21:1 (fails). For text placed on #151A28, use white for the best readability.

What is the closest Tailwind color to #151A28?

The nearest Tailwind CSS token is gray-900 (#101828).

What colors go well with #151A28?

As a neutral, #151A28 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 #151A28 the same as CSS midnightblue?

No — #151A28 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.

#151A28 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #151A28

Not just a swatch — here's how #151A28 works with other colors. Named schemes with #151A28 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #151A28 Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Graphite opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #151A28 Secondary #AEB4B8 Surface #F1F2F0 Support #7D92A7 Anchor #2E3236

Graphite keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Tech Product Signal · 5 colors

Signal #151A28 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #323846

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

Vintage Leather Lead · 5 colors

Lead #151A28 Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #582239

Graphite plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #151A28 Secondary #3B3D43 Support #9D8F88 Ink #18140F

Graphite 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 Graphite carrying the quiet middle.

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Color Lab

How #151A28 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 43/100

Neutral

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

Softness 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

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 22/100

Low

Clean and current — no dusty, aged cast.

Luxury 74/100

High

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

Brand distinctiveness 11/100

Very low

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

UI accent fit 11/100

Very low

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

Surface fit 62/100

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 #151A28

For UI

For branding

For interior

For fashion

People also use #151A28 with

Onyx Graphite Gainsboro Charcoal

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 17.4:1. Use

Subtle surface Use #C8CDDC for cards and hover fills. Tint 80

Avoid beside #161528 — 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 #151A28 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: #151A28;
  --color-base-rgb: 21 26 40;
  --color-base-oklch: oklch(22.0% 0.029 268.9);
  --color-50: #F5F6FA;
  --color-100: #E4E7F1;
  --color-200: #CAD0E3;
  --color-300: #A4AECC;
  --color-400: #7F8DB3;
  --color-500: #5F6E96;
  --color-600: #4E5874;
  --color-700: #3B4254;
  --color-800: #292D38;
  --color-900: #1A1D23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F5F6FA',
    100: '#E4E7F1',
    200: '#CAD0E3',
    300: '#A4AECC',
    400: '#7F8DB3',
    500: '#5F6E96',
    600: '#4E5874',
    700: '#3B4254',
    800: '#292D38',
    900: '#1A1D23',
  },
}

$base: #151A28;
$base-ink: #FFFFFF;
$base-50: #F5F6FA;
$base-100: #E4E7F1;
$base-200: #CAD0E3;
$base-300: #A4AECC;
$base-400: #7F8DB3;
$base-500: #5F6E96;
$base-600: #4E5874;
$base-700: #3B4254;
$base-800: #292D38;
$base-900: #1A1D23;
$base-hover: #111520;
$base-subtle: #ACB4CC;

{
    "color": {
        "base": {
            "value": "#151A28",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F6FA",
                "type": "color"
            },
            "100": {
                "value": "#E4E7F1",
                "type": "color"
            },
            "200": {
                "value": "#CAD0E3",
                "type": "color"
            },
            "300": {
                "value": "#A4AECC",
                "type": "color"
            },
            "400": {
                "value": "#7F8DB3",
                "type": "color"
            },
            "500": {
                "value": "#5F6E96",
                "type": "color"
            },
            "600": {
                "value": "#4E5874",
                "type": "color"
            },
            "700": {
                "value": "#3B4254",
                "type": "color"
            },
            "800": {
                "value": "#292D38",
                "type": "color"
            },
            "900": {
                "value": "#1A1D23",
                "type": "color"
            }
        }
    }
}

Palettes built on #151A28

Color Lab

Pairs with #151A28

UI roles & guardrails

In real applications

Scales

Every model

Export