What color is #005A8A?

#005A8A is a dark, vivid cyan-blue. In RGB it is rgb(0, 90, 138), and in HSL hsl(201, 100%, 27%).

Is #005A8A accessible as text?

On white, #005A8A has a contrast ratio of 7.42:1 (passes WCAG AA for body text); on black it is 2.83:1 (fails). For text placed on #005A8A, use white for the best readability.

What is the closest Tailwind color to #005A8A?

The nearest Tailwind CSS token is sky-800 (#00598A).

What colors go well with #005A8A?

#005A8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8A3000. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #005A8A below.

Is #005A8A good for buttons?

#005A8A works well for buttons and highlights, but use white text on #005A8A — black text only reaches 2.83:1, below the 4.5:1 needed for normal-size labels.

Is #005A8A the same as CSS darkslateblue?

No — #005A8A is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#005A8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #005A8A

Not just a swatch — here's how #005A8A works with other colors. Named schemes with #005A8A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #005A8A Accent #A5C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Lapis Lazuli 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 #005A8A Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #3E7DAA

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

Vintage Leather Lead · 5 colors

Lead #005A8A Secondary #7F4439 Surface #E2DDC0 Accent #375245 Anchor #57233C

Lapis Lazuli plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Berry & Cream Lead · 5 colors

Lead #005A8A Surface #EEE9D6 Anchor #5A2246 Accent #E4C2CB Secondary #322B30

Lapis Lazuli sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #005A8A Secondary #6A8091 Support #969386 Ink #16140F

Lapis Lazuli 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 Lapis Lazuli carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #005A8A 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 19/100

Cool

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

Softness 38/100

Low

Middle-weight — neither delicate nor heavy.

Depth 55/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 46/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 62/100

High

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

Brand distinctiveness 29/100

Low

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

UI accent fit 85/100

Very high

Strong interactive accent — visible and can carry a legible label.

Surface fit 24/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #005A8A

For UI

For branding

For interior

For fashion

People also use #005A8A with

Jungle Green Phthalo Blue Walnut Brown 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 7.4:1. Use

Subtle surface Use #BFE2F5 for cards and hover fills. Tint 80

Avoid beside #002C8A — 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 #005A8A at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #005A8A;
  --color-base-rgb: 0 90 138;
  --color-base-oklch: oklch(44.8% 0.106 242.0);
  --color-50: #F0F9FE;
  --color-100: #D8F0FD;
  --color-200: #B1E1FC;
  --color-300: #77CBF8;
  --color-400: #46B2EC;
  --color-500: #2295D2;
  --color-600: #23749F;
  --color-700: #1F5470;
  --color-800: #183848;
  --color-900: #11232C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  lapis-lazuli: {
    50: '#F0F9FE',
    100: '#D8F0FD',
    200: '#B1E1FC',
    300: '#77CBF8',
    400: '#46B2EC',
    500: '#2295D2',
    600: '#23749F',
    700: '#1F5470',
    800: '#183848',
    900: '#11232C',
  },
}

$base: #005A8A;
$base-ink: #FFFFFF;
$base-50: #F0F9FE;
$base-100: #D8F0FD;
$base-200: #B1E1FC;
$base-300: #77CBF8;
$base-400: #46B2EC;
$base-500: #2295D2;
$base-600: #23749F;
$base-700: #1F5470;
$base-800: #183848;
$base-900: #11232C;
$base-hover: #00486E;
$base-subtle: #9DD4F2;

{
    "color": {
        "base": {
            "value": "#005A8A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F9FE",
                "type": "color"
            },
            "100": {
                "value": "#D8F0FD",
                "type": "color"
            },
            "200": {
                "value": "#B1E1FC",
                "type": "color"
            },
            "300": {
                "value": "#77CBF8",
                "type": "color"
            },
            "400": {
                "value": "#46B2EC",
                "type": "color"
            },
            "500": {
                "value": "#2295D2",
                "type": "color"
            },
            "600": {
                "value": "#23749F",
                "type": "color"
            },
            "700": {
                "value": "#1F5470",
                "type": "color"
            },
            "800": {
                "value": "#183848",
                "type": "color"
            },
            "900": {
                "value": "#11232C",
                "type": "color"
            }
        }
    }
}