What color is #021F31?

#021F31 is a very dark, vivid cyan-blue. In RGB it is rgb(2, 31, 49), and in HSL hsl(203, 92%, 10%).

Is #021F31 accessible as text?

On white, #021F31 has a contrast ratio of 16.90:1 (passes WCAG AA for body text); on black it is 1.24:1 (fails). For text placed on #021F31, use white for the best readability.

What is the closest Tailwind color to #021F31?

The nearest Tailwind CSS token is mist-900 (#161B1D).

What colors go well with #021F31?

#021F31 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #311402. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #021F31 below.

Is #021F31 good for buttons?

#021F31 works well for buttons and highlights, but use white text on #021F31 — black text only reaches 1.24:1, below the 4.5:1 needed for normal-size labels.

Is #021F31 the same as CSS midnightblue?

No — #021F31 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.

#021F31 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #021F31

Not just a swatch — here's how #021F31 works with other colors. Named schemes with #021F31 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #021F31 Accent #A5C4C0 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.

Nordic Calm Accent · 5 colors

Accent #021F31 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 #021F31 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #243D4F

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 #021F31 Secondary #7F4439 Surface #E2DDC0 Accent #385245 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 #021F31 Secondary #374148 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.

Build a working theme in the generator →

Color Lab

How #021F31 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 36/100

Cool

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

Softness 24/100

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 25/100

Low

Clean and current — no dusty, aged cast.

Luxury 75/100

High

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

Brand distinctiveness 19/100

Very low

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

UI accent fit 15/100

Very low

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

Surface fit 55/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #021F31

For UI

For branding

For interior

For fashion

People also use #021F31 with

Castleton Green Jet Black 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 16.9:1. Use

Subtle surface Use #B3D8F0 for cards and hover fills. Tint 80

Avoid beside #020F31 — 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 #021F31 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: #021F31;
  --color-base-rgb: 2 31 49;
  --color-base-oklch: oklch(22.8% 0.049 239.9);
  --color-50: #F0F9FE;
  --color-100: #D8EFFD;
  --color-200: #B1DFFC;
  --color-300: #7CC5F3;
  --color-400: #4DABE5;
  --color-500: #298DCB;
  --color-600: #286E9A;
  --color-700: #22506D;
  --color-800: #1A3647;
  --color-900: #12222B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F0F9FE',
    100: '#D8EFFD',
    200: '#B1DFFC',
    300: '#7CC5F3',
    400: '#4DABE5',
    500: '#298DCB',
    600: '#286E9A',
    700: '#22506D',
    800: '#1A3647',
    900: '#12222B',
  },
}

$base: #021F31;
$base-ink: #FFFFFF;
$base-50: #F0F9FE;
$base-100: #D8EFFD;
$base-200: #B1DFFC;
$base-300: #7CC5F3;
$base-400: #4DABE5;
$base-500: #298DCB;
$base-600: #286E9A;
$base-700: #22506D;
$base-800: #1A3647;
$base-900: #12222B;
$base-hover: #021927;
$base-subtle: #8AC5EA;

{
    "color": {
        "base": {
            "value": "#021F31",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F9FE",
                "type": "color"
            },
            "100": {
                "value": "#D8EFFD",
                "type": "color"
            },
            "200": {
                "value": "#B1DFFC",
                "type": "color"
            },
            "300": {
                "value": "#7CC5F3",
                "type": "color"
            },
            "400": {
                "value": "#4DABE5",
                "type": "color"
            },
            "500": {
                "value": "#298DCB",
                "type": "color"
            },
            "600": {
                "value": "#286E9A",
                "type": "color"
            },
            "700": {
                "value": "#22506D",
                "type": "color"
            },
            "800": {
                "value": "#1A3647",
                "type": "color"
            },
            "900": {
                "value": "#12222B",
                "type": "color"
            }
        }
    }
}

Palettes built on #021F31

Color Lab

Pairs with #021F31

UI roles & guardrails

In real applications

Scales

Every model

Export