#263AB1#263AB1

#263AB1 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.9% C 0.188 H 268.7°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#263AB1
RGB	rgb(38, 58, 177)
HSL	hsl(231, 65%, 42%)
HSV	hsv(231, 79%, 69%)
CMYK	cmyk(78.5%, 67.2%, 0%, 30.6%)
CIE-LAB	lab(30.91, 35.78, -65.09)
CIE-LCH	lch(30.91, 74.28, 298.80°)
OKLab	oklab(41.86% -0.0041 -0.1884)
OKLCH	oklch(41.86% 0.188 268.7)
XYZ	xyz(10.2455, 6.6113, 42.3226)
Luminance	0.0661 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263AB1 #B19D26

analogous

#2680B1 #263AB1 #5826B1

triadic

#263AB1 #B1263A #3AB126

tetradic

#263AB1 #B12680 #B19D26 #26B158

square

#263AB1 #B12680 #B19D26 #26B158

split-complementary

#263AB1 #B15826 #80B126

monochromatic

#10194C #1B297F #263AB1 #3F54D6 #7181E0

Accessibility & contrast

On white

9.04

#263AB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#263AB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263AB1

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263AB1	#FFFFFF	#000000	##FFFFFF
##263AB1	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB5

Deuteranopia (green-blind)

#0042AF

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #263ab1;
/* rgb */ color: rgb(38, 58, 177);
/* oklch */ color: oklch(41.9% 0.188 268.7);

Tailwind

colors: {
  custom: {
    50: '#7870c9',
    500: '#263ab1',
    950: '#000000',
  },
}

SCSS

$custom: #263ab1;
$custom-light: #7870c9;
$custom-dark: #000000;

JSON

{
  "hex": "#263ab1",
  "rgb": {
    "r": 38,
    "g": 58,
    "b": 177
  },
  "hsl": {
    "h": 231.367,
    "s": 64.651,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41864,
    "c": 0.18848,
    "h": 268.7
  },
  "luminance": 0.06613
}

Semantic roles & 50–950 ramp

primary

#263AB1

secondary

#C7BA6B

accent

#D040E8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #263AB1

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →