What color is #151A4C?

#151A4C is a dark blue-violet. In RGB it is rgb(21, 26, 76), and in HSL hsl(235, 57%, 19%).

Is #151A4C accessible as text?

On white, #151A4C has a contrast ratio of 16.36:1 (passes WCAG AA for body text); on black it is 1.28:1 (fails). For text placed on #151A4C, use white for the best readability.

What is the closest Tailwind color to #151A4C?

The nearest Tailwind CSS token is indigo-950 (#1E1A4D).

What colors go well with #151A4C?

#151A4C pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4C4715. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #151A4C below.

Is #151A4C good for buttons?

#151A4C works well for buttons and highlights, but use white text on #151A4C — black text only reaches 1.28:1, below the 4.5:1 needed for normal-size labels.

Is #151A4C the same as CSS midnightblue?

No — #151A4C is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#151A4C Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #151A4C

Not just a swatch — here's how #151A4C works with other colors. Named schemes with #151A4C in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #151A4C Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Navy 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 #151A4C Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

Navy 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 #151A4C Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #323B6A

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

Vintage Leather Lead · 5 colors

Lead #151A4C Secondary #7F4535 Surface #EED7C2 Accent #365247 Anchor #582239

Navy 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 #151A4C Secondary #3F4456 Support #9D8F88 Ink #18140F

Navy 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 Navy carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #151A4C 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 30/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 23/100

Low

Firm and assertive — carries weight and contrast.

Depth 74/100

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 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 78/100

High

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

Brand distinctiveness 35/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 23/100

Low

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

Surface fit 41/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #151A4C

For UI

For branding

For interior

For fashion

People also use #151A4C with

Classic Blue Russian Violet Army Green Gainsboro Prussian Blue

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 16.4:1. Use

Subtle surface Use #C5C8E7 for cards and hover fills. Tint 80

Avoid beside #23154C — 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 #151A4C 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: #151A4C;
  --color-base-rgb: 21 26 76;
  --color-base-oklch: oklch(24.9% 0.091 273.4);
  --color-50: #F3F3FC;
  --color-100: #DEE0F7;
  --color-200: #BFC3ED;
  --color-300: #9399DC;
  --color-400: #6A72C8;
  --color-500: #4851AD;
  --color-600: #3D4384;
  --color-700: #30345E;
  --color-800: #23253E;
  --color-900: #171826;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F3F3FC',
    100: '#DEE0F7',
    200: '#BFC3ED',
    300: '#9399DC',
    400: '#6A72C8',
    500: '#4851AD',
    600: '#3D4384',
    700: '#30345E',
    800: '#23253E',
    900: '#171826',
  },
}

$base: #151A4C;
$base-ink: #FFFFFF;
$base-50: #F3F3FC;
$base-100: #DEE0F7;
$base-200: #BFC3ED;
$base-300: #9399DC;
$base-400: #6A72C8;
$base-500: #4851AD;
$base-600: #3D4384;
$base-700: #30345E;
$base-800: #23253E;
$base-900: #171826;
$base-hover: #11143D;
$base-subtle: #A6ABDC;

{
    "color": {
        "base": {
            "value": "#151A4C",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F3FC",
                "type": "color"
            },
            "100": {
                "value": "#DEE0F7",
                "type": "color"
            },
            "200": {
                "value": "#BFC3ED",
                "type": "color"
            },
            "300": {
                "value": "#9399DC",
                "type": "color"
            },
            "400": {
                "value": "#6A72C8",
                "type": "color"
            },
            "500": {
                "value": "#4851AD",
                "type": "color"
            },
            "600": {
                "value": "#3D4384",
                "type": "color"
            },
            "700": {
                "value": "#30345E",
                "type": "color"
            },
            "800": {
                "value": "#23253E",
                "type": "color"
            },
            "900": {
                "value": "#171826",
                "type": "color"
            }
        }
    }
}