What color is #264DBB?

#264DBB is a medium blue. In RGB it is rgb(38, 77, 187), and in HSL hsl(224, 66%, 44%).

Is #264DBB accessible as text?

On white, #264DBB has a contrast ratio of 7.34:1 (passes WCAG AA for body text); on black it is 2.86:1 (fails). For text placed on #264DBB, use white for the best readability.

What is the closest Tailwind color to #264DBB?

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

What colors go well with #264DBB?

#264DBB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BA9326. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #264DBB below.

Is #264DBB good for buttons?

#264DBB works well for buttons and highlights, but use white text on #264DBB — black text only reaches 2.86:1, below the 4.5:1 needed for normal-size labels.

Is #264DBB the same as CSS darkslateblue?

No — #264DBB is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#264DBB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #264DBB

Not just a swatch — here's how #264DBB works with other colors. Named schemes with #264DBB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #264DBB Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Cerulean 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 #264DBB Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #4B75DA

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

Vintage Leather Lead · 5 colors

Lead #264DBB Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #58223A

Cerulean 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 #264DBB Surface #F6E5D8 Anchor #5B2144 Accent #E5C2CA Secondary #322B2F

Cerulean 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 #264DBB Secondary #6F81A7 Support #9D8F88 Ink #18140F

Cerulean 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 Cerulean carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #264DBB 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 32/100

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 28/100

Low

A faint retro warmth without tipping into sepia.

Luxury 56/100

Moderate

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

Brand distinctiveness 48/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 87/100

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 67/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #264DBB

For UI

For branding

For interior

For fashion

People also use #264DBB 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 #D5DCF0 for cards and hover fills. Tint 80

Avoid beside #3026BA — 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 #264DBB 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: #264DBB;
  --color-base-rgb: 38 77 187;
  --color-base-oklch: oklch(46.3% 0.179 265.1);
  --color-50: #F2F5FD;
  --color-100: #DCE4F9;
  --color-200: #BBCAF1;
  --color-300: #8DA4E2;
  --color-400: #6280D0;
  --color-500: #405FB5;
  --color-600: #384E8A;
  --color-700: #2D3B62;
  --color-800: #212940;
  --color-900: #161A28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  cerulean: {
    50: '#F2F5FD',
    100: '#DCE4F9',
    200: '#BBCAF1',
    300: '#8DA4E2',
    400: '#6280D0',
    500: '#405FB5',
    600: '#384E8A',
    700: '#2D3B62',
    800: '#212940',
    900: '#161A28',
  },
}

$base: #264DBB;
$base-ink: #FFFFFF;
$base-50: #F2F5FD;
$base-100: #DCE4F9;
$base-200: #BBCAF1;
$base-300: #8DA4E2;
$base-400: #6280D0;
$base-500: #405FB5;
$base-600: #384E8A;
$base-700: #2D3B62;
$base-800: #212940;
$base-900: #161A28;
$base-hover: #1F3E95;
$base-subtle: #BFCAEA;

{
    "color": {
        "base": {
            "value": "#264DBB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F5FD",
                "type": "color"
            },
            "100": {
                "value": "#DCE4F9",
                "type": "color"
            },
            "200": {
                "value": "#BBCAF1",
                "type": "color"
            },
            "300": {
                "value": "#8DA4E2",
                "type": "color"
            },
            "400": {
                "value": "#6280D0",
                "type": "color"
            },
            "500": {
                "value": "#405FB5",
                "type": "color"
            },
            "600": {
                "value": "#384E8A",
                "type": "color"
            },
            "700": {
                "value": "#2D3B62",
                "type": "color"
            },
            "800": {
                "value": "#212940",
                "type": "color"
            },
            "900": {
                "value": "#161A28",
                "type": "color"
            }
        }
    }
}

Palettes built on #264DBB

Color Lab

Pairs with #264DBB

UI roles & guardrails

In real applications

Scales

Every model

Export