What color is #024055?

#024055 is a very dark, vivid cyan. In RGB it is rgb(2, 64, 85), and in HSL hsl(195, 95%, 17%).

Is #024055 accessible as text?

On white, #024055 has a contrast ratio of 11.25:1 (passes WCAG AA for body text); on black it is 1.87:1 (fails). For text placed on #024055, use white for the best readability.

What is the closest Tailwind color to #024055?

The nearest Tailwind CSS token is cyan-950 (#053345).

What colors go well with #024055?

#024055 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #551702. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #024055 below.

Is #024055 good for buttons?

#024055 works well for buttons and highlights, but use white text on #024055 — black text only reaches 1.87:1, below the 4.5:1 needed for normal-size labels.

Is #024055 the same as CSS darkslategray?

No — #024055 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#024055 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #024055

Not just a swatch — here's how #024055 works with other colors. Named schemes with #024055 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #024055 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Prussian Blue 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 #024055 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

Prussian Blue 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 #024055 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #326175

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

Vintage Leather Lead · 5 colors

Lead #024055 Secondary #6F5216 Surface #E2DCC0 Accent #385244 Anchor #56233D

Prussian Blue 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 #024055 Secondary #52636A Support #969386 Ink #16140F

Prussian Blue 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 Prussian Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #024055 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 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 37/100

Low

A faint retro warmth without tipping into sepia.

Luxury 67/100

High

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

Brand distinctiveness 26/100

Low

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

UI accent fit 45/100

Moderate

Workable accent with care around contrast.

Surface fit 42/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #024055

For UI

For branding

For interior

For fashion

People also use #024055 with

Pine Green Navy Oxblood Platinum Dark Slate Gray

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 11.2:1. Use

Subtle surface Use #B8E3F2 for cards and hover fills. Tint 80

Avoid beside #022455 — 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 #024055 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: #024055;
  --color-base-rgb: 2 64 85;
  --color-base-oklch: oklch(34.7% 0.067 228.2);
  --color-50: #F0FBFE;
  --color-100: #D8F4FD;
  --color-200: #B1E9FC;
  --color-300: #7AD6F5;
  --color-400: #4AC0E8;
  --color-500: #27A4CE;
  --color-600: #267E9C;
  --color-700: #215B6E;
  --color-800: #1A3C47;
  --color-900: #12252B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  prussian-blue: {
    50: '#F0FBFE',
    100: '#D8F4FD',
    200: '#B1E9FC',
    300: '#7AD6F5',
    400: '#4AC0E8',
    500: '#27A4CE',
    600: '#267E9C',
    700: '#215B6E',
    800: '#1A3C47',
    900: '#12252B',
  },
}

$base: #024055;
$base-ink: #FFFFFF;
$base-50: #F0FBFE;
$base-100: #D8F4FD;
$base-200: #B1E9FC;
$base-300: #7AD6F5;
$base-400: #4AC0E8;
$base-500: #27A4CE;
$base-600: #267E9C;
$base-700: #215B6E;
$base-800: #1A3C47;
$base-900: #12252B;
$base-hover: #023344;
$base-subtle: #92D6ED;

{
    "color": {
        "base": {
            "value": "#024055",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FBFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F4FD",
                "type": "color"
            },
            "200": {
                "value": "#B1E9FC",
                "type": "color"
            },
            "300": {
                "value": "#7AD6F5",
                "type": "color"
            },
            "400": {
                "value": "#4AC0E8",
                "type": "color"
            },
            "500": {
                "value": "#27A4CE",
                "type": "color"
            },
            "600": {
                "value": "#267E9C",
                "type": "color"
            },
            "700": {
                "value": "#215B6E",
                "type": "color"
            },
            "800": {
                "value": "#1A3C47",
                "type": "color"
            },
            "900": {
                "value": "#12252B",
                "type": "color"
            }
        }
    }
}