What color is #152128?

#152128 is a very dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(21, 33, 40), and in HSL hsl(202, 31%, 12%).

Is #152128 accessible as text?

On white, #152128 has a contrast ratio of 16.41:1 (passes WCAG AA for body text); on black it is 1.28:1 (fails). For text placed on #152128, use white for the best readability.

What is the closest Tailwind color to #152128?

The nearest Tailwind CSS token is zinc-900 (#18181B).

What colors go well with #152128?

As a neutral, #152128 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 #152128 the same as CSS midnightblue?

No — #152128 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.

#152128 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #152128

Not just a swatch — here's how #152128 works with other colors. Named schemes with #152128 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #152128 Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

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

Tech Product Signal · 5 colors

Signal #152128 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #333F46

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.

Nordic Calm Accent · 5 colors

Accent #152128 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.

Vintage Leather Lead · 5 colors

Lead #152128 Secondary #6E5216 Surface #E2DCC0 Accent #385245 Anchor #57233D

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 #152128 Secondary #3F4346 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 #152128 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 44/100

Neutral

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

Softness 26/100

Low

Firm and assertive — carries weight and contrast.

Depth 71/100

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 20/100

Low

Clean and current — no dusty, aged cast.

Luxury 71/100

High

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

Brand distinctiveness 8/100

Very low

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

UI accent fit 13/100

Very low

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

Surface fit 63/100

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 #152128

For UI

For branding

For interior

For fashion

People also use #152128 with

Brunswick Green Graphite Platinum 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 16.4:1. Use

Subtle surface Use #C8D5DC for cards and hover fills. Tint 80

Avoid beside #151B28 — 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 #152128 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: #152128;
  --color-base-rgb: 21 33 40;
  --color-base-oklch: oklch(24.0% 0.022 234.5);
  --color-50: #F5F8FA;
  --color-100: #E4ECF1;
  --color-200: #CADAE3;
  --color-300: #A4BDCC;
  --color-400: #7FA0B3;
  --color-500: #5F8296;
  --color-600: #4E6674;
  --color-700: #3B4B54;
  --color-800: #293238;
  --color-900: #1A2023;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F5F8FA',
    100: '#E4ECF1',
    200: '#CADAE3',
    300: '#A4BDCC',
    400: '#7FA0B3',
    500: '#5F8296',
    600: '#4E6674',
    700: '#3B4B54',
    800: '#293238',
    900: '#1A2023',
  },
}

$base: #152128;
$base-ink: #FFFFFF;
$base-50: #F5F8FA;
$base-100: #E4ECF1;
$base-200: #CADAE3;
$base-300: #A4BDCC;
$base-400: #7FA0B3;
$base-500: #5F8296;
$base-600: #4E6674;
$base-700: #3B4B54;
$base-800: #293238;
$base-900: #1A2023;
$base-hover: #111B20;
$base-subtle: #ACC0CC;

{
    "color": {
        "base": {
            "value": "#152128",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E4ECF1",
                "type": "color"
            },
            "200": {
                "value": "#CADAE3",
                "type": "color"
            },
            "300": {
                "value": "#A4BDCC",
                "type": "color"
            },
            "400": {
                "value": "#7FA0B3",
                "type": "color"
            },
            "500": {
                "value": "#5F8296",
                "type": "color"
            },
            "600": {
                "value": "#4E6674",
                "type": "color"
            },
            "700": {
                "value": "#3B4B54",
                "type": "color"
            },
            "800": {
                "value": "#293238",
                "type": "color"
            },
            "900": {
                "value": "#1A2023",
                "type": "color"
            }
        }
    }
}

Palettes built on #152128

Color Lab

Pairs with #152128

UI roles & guardrails

In real applications

Scales

Every model

Export