What color is #08408F?

#08408F is a dark, vivid blue. In RGB it is rgb(8, 64, 143), and in HSL hsl(215, 89%, 30%).

Is #08408F accessible as text?

On white, #08408F has a contrast ratio of 9.81:1 (passes WCAG AA for body text); on black it is 2.14:1 (fails). For text placed on #08408F, use white for the best readability.

What is the closest Tailwind color to #08408F?

The nearest Tailwind CSS token is blue-900 (#1C398E).

What colors go well with #08408F?

#08408F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #915808. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #08408F below.

Is #08408F good for buttons?

#08408F works well for buttons and highlights, but use white text on #08408F — black text only reaches 2.14:1, below the 4.5:1 needed for normal-size labels.

Is #08408F the same as CSS darkslateblue?

No — #08408F is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#08408F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #08408F

Not just a swatch — here's how #08408F works with other colors. Named schemes with #08408F in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #08408F Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Classic Blue 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 #08408F Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #3665AE

Classic 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 Classic Blue.

Vintage Leather Lead · 5 colors

Lead #08408F Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

Classic 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.

Berry & Cream Lead · 5 colors

Lead #08408F Surface #F6E5D8 Anchor #5A2144 Accent #E4C2CA Secondary #322B2F

Classic Blue 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 #08408F Secondary #5B6D89 Support #9D8F89 Ink #16140F

Classic 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 Classic Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #08408F 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 13/100

Cool

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 63/100

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 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

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

Brand distinctiveness 38/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 71/100

High

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

Surface fit 16/100

Very low

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

Print safety 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #08408F

For UI

For branding

For interior

For fashion

People also use #08408F with

Light Sea Green Phthalo Blue Brown 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 9.8:1. Use

Subtle surface Use #C4D7F2 for cards and hover fills. Tint 80

Avoid beside #081491 — 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 #08408F 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: #08408F;
  --color-base-rgb: 8 64 143;
  --color-base-oklch: oklch(39.0% 0.142 259.0);
  --color-50: #F0F6FE;
  --color-100: #D8E7FD;
  --color-200: #B2D0FA;
  --color-300: #7EAEF1;
  --color-400: #4F8DE3;
  --color-500: #2C6DC9;
  --color-600: #2A5898;
  --color-700: #23416B;
  --color-800: #1B2D46;
  --color-900: #131D2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F0F6FE',
    100: '#D8E7FD',
    200: '#B2D0FA',
    300: '#7EAEF1',
    400: '#4F8DE3',
    500: '#2C6DC9',
    600: '#2A5898',
    700: '#23416B',
    800: '#1B2D46',
    900: '#131D2B',
  },
}

$base: #08408F;
$base-ink: #FFFFFF;
$base-50: #F0F6FE;
$base-100: #D8E7FD;
$base-200: #B2D0FA;
$base-300: #7EAEF1;
$base-400: #4F8DE3;
$base-500: #2C6DC9;
$base-600: #2A5898;
$base-700: #23416B;
$base-800: #1B2D46;
$base-900: #131D2B;
$base-hover: #073474;
$base-subtle: #A5C3EE;

{
    "color": {
        "base": {
            "value": "#08408F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F6FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E7FD",
                "type": "color"
            },
            "200": {
                "value": "#B2D0FA",
                "type": "color"
            },
            "300": {
                "value": "#7EAEF1",
                "type": "color"
            },
            "400": {
                "value": "#4F8DE3",
                "type": "color"
            },
            "500": {
                "value": "#2C6DC9",
                "type": "color"
            },
            "600": {
                "value": "#2A5898",
                "type": "color"
            },
            "700": {
                "value": "#23416B",
                "type": "color"
            },
            "800": {
                "value": "#1B2D46",
                "type": "color"
            },
            "900": {
                "value": "#131D2B",
                "type": "color"
            }
        }
    }
}

Palettes built on #08408F

Color Lab

Pairs with #08408F

UI roles & guardrails

In real applications

Scales

Every model

Export