What color is #152533?

#152533 is a very dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(21, 37, 51), and in HSL hsl(208, 42%, 14%).

Is #152533 accessible as text?

On white, #152533 has a contrast ratio of 15.62:1 (passes WCAG AA for body text); on black it is 1.34:1 (fails). For text placed on #152533, use white for the best readability.

What is the closest Tailwind color to #152533?

The nearest Tailwind CSS token is gray-800 (#1E2939).

What colors go well with #152533?

As a neutral, #152533 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 #152533 the same as CSS midnightblue?

No — #152533 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.

#152533 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #152533

Not just a swatch — here's how #152533 works with other colors. Named schemes with #152533 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #152533 Accent #A5C4C0 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

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 #152533 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 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 #152533 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #344451

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 #152533 Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233C

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 #F6F4EF Accent #152533 Secondary #42484D Support #969386 Ink #16140F

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 #152533 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 40/100

Neutral

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 70/100

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 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 71/100

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 17/100

Very low

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

Surface fit 58/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 92/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #152533

For UI

For branding

For interior

For fashion

People also use #152533 with

Dark Slate Gray Graphite Bistre 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 15.6:1. Use

Subtle surface Use #C6D4E0 for cards and hover fills. Tint 80

Avoid beside #151B33 — 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 #152533 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: #152533;
  --color-base-rgb: 21 37 51;
  --color-base-oklch: oklch(25.7% 0.034 246.0);
  --color-50: #F4F8FB;
  --color-100: #E2EBF4;
  --color-200: #C5D7E7;
  --color-300: #9CB9D3;
  --color-400: #769BBC;
  --color-500: #557D9F;
  --color-600: #47637B;
  --color-700: #364958;
  --color-800: #26313B;
  --color-900: #191F24;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F4F8FB',
    100: '#E2EBF4',
    200: '#C5D7E7',
    300: '#9CB9D3',
    400: '#769BBC',
    500: '#557D9F',
    600: '#47637B',
    700: '#364958',
    800: '#26313B',
    900: '#191F24',
  },
}

$base: #152533;
$base-ink: #FFFFFF;
$base-50: #F4F8FB;
$base-100: #E2EBF4;
$base-200: #C5D7E7;
$base-300: #9CB9D3;
$base-400: #769BBC;
$base-500: #557D9F;
$base-600: #47637B;
$base-700: #364958;
$base-800: #26313B;
$base-900: #191F24;
$base-hover: #111D29;
$base-subtle: #A8BFD2;

{
    "color": {
        "base": {
            "value": "#152533",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F8FB",
                "type": "color"
            },
            "100": {
                "value": "#E2EBF4",
                "type": "color"
            },
            "200": {
                "value": "#C5D7E7",
                "type": "color"
            },
            "300": {
                "value": "#9CB9D3",
                "type": "color"
            },
            "400": {
                "value": "#769BBC",
                "type": "color"
            },
            "500": {
                "value": "#557D9F",
                "type": "color"
            },
            "600": {
                "value": "#47637B",
                "type": "color"
            },
            "700": {
                "value": "#364958",
                "type": "color"
            },
            "800": {
                "value": "#26313B",
                "type": "color"
            },
            "900": {
                "value": "#191F24",
                "type": "color"
            }
        }
    }
}

Palettes built on #152533

Color Lab

Pairs with #152533

UI roles & guardrails

In real applications

Scales

Every model

Export