What color is #204DBD?

#204DBD is a medium, vivid blue. In RGB it is rgb(32, 77, 189), and in HSL hsl(223, 71%, 43%).

Is #204DBD accessible as text?

On white, #204DBD has a contrast ratio of 7.35:1 (passes WCAG AA for body text); on black it is 2.86:1 (fails). For text placed on #204DBD, use white for the best readability.

What is the closest Tailwind color to #204DBD?

The nearest Tailwind CSS token is blue-800 (#193CB8).

What colors go well with #204DBD?

#204DBD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BC8F20. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #204DBD below.

Is #204DBD good for buttons?

#204DBD works well for buttons and highlights, but use white text on #204DBD — black text only reaches 2.86:1, below the 4.5:1 needed for normal-size labels.

Is #204DBD the same as CSS darkslateblue?

No — #204DBD is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#204DBD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #204DBD

Not just a swatch — here's how #204DBD works with other colors. Named schemes with #204DBD in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #204DBD Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Sapphire 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 #204DBD Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4775DC

Sapphire 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 Sapphire Blue.

Vintage Leather Lead · 5 colors

Lead #204DBD Secondary #7F4536 Surface #EED7C2 Accent #375246 Anchor #57223A

Sapphire 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 #204DBD Surface #F6E5D8 Anchor #5B2144 Accent #E5C2CA Secondary #322B2F

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #204DBD Secondary #6E81A8 Support #9D8F88 Ink #18140F

Sapphire 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 Sapphire Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #204DBD 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 9/100

Cool

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 57/100

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 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 55/100

Moderate

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

Brand distinctiveness 50/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 86/100

Very high

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

Surface fit 10/100

Very low

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

Print safety 66/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #204DBD

For UI

For branding

For interior

For fashion

People also use #204DBD with

Lagoon Blue Grape Dijon 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 7.3:1. Use

Subtle surface Use #D3DBF1 for cards and hover fills. Tint 80

Avoid beside #2820BC — 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 #204DBD at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #204DBD;
  --color-base-rgb: 32 77 189;
  --color-base-oklch: oklch(46.3% 0.183 263.9);
  --color-50: #F1F5FD;
  --color-100: #DBE4FA;
  --color-200: #B9CAF3;
  --color-300: #8AA4E5;
  --color-400: #5E80D4;
  --color-500: #3C5FB9;
  --color-600: #354E8D;
  --color-700: #2B3B64;
  --color-800: #1F2942;
  --color-900: #151A28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  sapphire-blue: {
    50: '#F1F5FD',
    100: '#DBE4FA',
    200: '#B9CAF3',
    300: '#8AA4E5',
    400: '#5E80D4',
    500: '#3C5FB9',
    600: '#354E8D',
    700: '#2B3B64',
    800: '#1F2942',
    900: '#151A28',
  },
}

$base: #204DBD;
$base-ink: #FFFFFF;
$base-50: #F1F5FD;
$base-100: #DBE4FA;
$base-200: #B9CAF3;
$base-300: #8AA4E5;
$base-400: #5E80D4;
$base-500: #3C5FB9;
$base-600: #354E8D;
$base-700: #2B3B64;
$base-800: #1F2942;
$base-900: #151A28;
$base-hover: #193D96;
$base-subtle: #BCC9EB;

{
    "color": {
        "base": {
            "value": "#204DBD",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F5FD",
                "type": "color"
            },
            "100": {
                "value": "#DBE4FA",
                "type": "color"
            },
            "200": {
                "value": "#B9CAF3",
                "type": "color"
            },
            "300": {
                "value": "#8AA4E5",
                "type": "color"
            },
            "400": {
                "value": "#5E80D4",
                "type": "color"
            },
            "500": {
                "value": "#3C5FB9",
                "type": "color"
            },
            "600": {
                "value": "#354E8D",
                "type": "color"
            },
            "700": {
                "value": "#2B3B64",
                "type": "color"
            },
            "800": {
                "value": "#1F2942",
                "type": "color"
            },
            "900": {
                "value": "#151A28",
                "type": "color"
            }
        }
    }
}

Palettes built on #204DBD

Color Lab

Pairs with #204DBD

UI roles & guardrails

In real applications

Scales

Every model

Export