What color is #08048B?

#08048B is a dark, vivid blue. In RGB it is rgb(8, 4, 139), and in HSL hsl(242, 94%, 28%).

Is #08048B accessible as text?

On white, #08048B has a contrast ratio of 14.99:1 (passes WCAG AA for body text); on black it is 1.40:1 (fails). For text placed on #08048B, use white for the best readability.

What is the closest Tailwind color to #08048B?

The nearest Tailwind CSS token is violet-950 (#2F0D68).

What colors go well with #08048B?

#08048B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #868B04. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #08048B below.

Is #08048B good for buttons?

#08048B works well for buttons and highlights, but use white text on #08048B — black text only reaches 1.40:1, below the 4.5:1 needed for normal-size labels.

Is #08048B the same as CSS darkblue?

No — #08048B is not the CSS named color darkblue, but darkblue (#00008B) is the closest CSS named color.

#08048B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #08048B

Not just a swatch — here's how #08048B works with other colors. Named schemes with #08048B in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #08048B Anchor #141210 Accent #DD965A Secondary #242933 Surface #F4ECE3

Phthalo Blue carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Tech Product Signal · 5 colors

Signal #08048B Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #1E3DA9

Phthalo 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 Phthalo Blue.

Moody Editorial Color · 5 colors

Color #08048B Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #130048

Phthalo Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Phthalo Blue.

Coastal Morning Lead · 5 colors

Lead #08048B Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #08048B Secondary #3F5077 Support #9D8F88 Ink #18140F

Phthalo 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 Phthalo Blue carrying the quiet middle.

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Color Lab

How #08048B 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 10/100

Cool

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

Softness 20/100

Low

Firm and assertive — carries weight and contrast.

Depth 75/100

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 17/100

Very low

Clean and current — no dusty, aged cast.

Luxury 68/100

High

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

Brand distinctiveness 75/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 34/100

Low

Workable accent with care around contrast.

Surface fit 21/100

Low

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

Print safety 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #08048B

For UI

For branding

For interior

For fashion

People also use #08048B with

Denim Blue Indigo Olive Gainsboro Prussian Blue

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 15.0:1. Use

Subtle surface Use #C3C1F3 for cards and hover fills. Tint 80

Avoid beside #36048B — 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 #08048B 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: #08048B;
  --color-base-rgb: 8 4 139;
  --color-base-oklch: oklch(29.4% 0.195 266.1);
  --color-50: #F1F0FE;
  --color-100: #D9D8FD;
  --color-200: #B3B1FC;
  --color-300: #7F7BF4;
  --color-400: #504BE7;
  --color-500: #2D28CD;
  --color-600: #2A269B;
  --color-700: #24216D;
  --color-800: #1B1A47;
  --color-900: #13122B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  phthalo-blue: {
    50: '#F1F0FE',
    100: '#D9D8FD',
    200: '#B3B1FC',
    300: '#7F7BF4',
    400: '#504BE7',
    500: '#2D28CD',
    600: '#2A269B',
    700: '#24216D',
    800: '#1B1A47',
    900: '#13122B',
  },
}

$base: #08048B;
$base-ink: #FFFFFF;
$base-50: #F1F0FE;
$base-100: #D9D8FD;
$base-200: #B3B1FC;
$base-300: #7F7BF4;
$base-400: #504BE7;
$base-500: #2D28CD;
$base-600: #2A269B;
$base-700: #24216D;
$base-800: #1B1A47;
$base-900: #13122B;
$base-hover: #07036F;
$base-subtle: #A3A1EF;

{
    "color": {
        "base": {
            "value": "#08048B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F0FE",
                "type": "color"
            },
            "100": {
                "value": "#D9D8FD",
                "type": "color"
            },
            "200": {
                "value": "#B3B1FC",
                "type": "color"
            },
            "300": {
                "value": "#7F7BF4",
                "type": "color"
            },
            "400": {
                "value": "#504BE7",
                "type": "color"
            },
            "500": {
                "value": "#2D28CD",
                "type": "color"
            },
            "600": {
                "value": "#2A269B",
                "type": "color"
            },
            "700": {
                "value": "#24216D",
                "type": "color"
            },
            "800": {
                "value": "#1B1A47",
                "type": "color"
            },
            "900": {
                "value": "#13122B",
                "type": "color"
            }
        }
    }
}

Palettes built on #08048B

Color Lab

Pairs with #08048B

UI roles & guardrails

In real applications

Scales

Every model

Export