#263FAB#263FAB

#263FAB is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.175 H 267.8°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#263FAB
RGB	rgb(38, 63, 171)
HSL	hsl(229, 64%, 41%)
HSV	hsv(229, 78%, 67%)
CMYK	cmyk(77.8%, 63.2%, 0%, 32.9%)
CIE-LAB	lab(31.59, 30.31, -60.38)
CIE-LCH	lch(31.59, 67.56, 296.66°)
OKLab	oklab(42.2% -0.0067 -0.1746)
OKLCH	oklch(42.2% 0.175 267.8)
XYZ	xyz(9.9250, 6.9062, 39.3301)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263FAB #AB9226

analogous

#2681AB #263FAB #4F26AB

triadic

#263FAB #AB263F #3FAB26

tetradic

#263FAB #AB2681 #AB9226 #26AB4F

square

#263FAB #AB2681 #AB9226 #26AB4F

split-complementary

#263FAB #AB4F26 #81AB26

monochromatic

#101A47 #1B2D79 #263FAB #3B57D3 #6D82DF

Accessibility & contrast

On white

8.82

#263FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#263FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263FAB

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263FAB	#FFFFFF	#000000	##FFFFFF
##263FAB	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AE

Deuteranopia (green-blind)

#0044A9

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #263fab;
/* rgb */ color: rgb(38, 63, 171);
/* oklch */ color: oklch(42.2% 0.175 267.8);

Tailwind

colors: {
  custom: {
    50: '#7673c5',
    500: '#263fab',
    950: '#000000',
  },
}

SCSS

$custom: #263fab;
$custom-light: #7673c5;
$custom-dark: #000000;

JSON

{
  "hex": "#263fab",
  "rgb": {
    "r": 38,
    "g": 63,
    "b": 171
  },
  "hsl": {
    "h": 228.722,
    "s": 63.636,
    "l": 40.98
  },
  "oklch": {
    "l": 0.42202,
    "c": 0.17474,
    "h": 267.8
  },
  "luminance": 0.06907
}

Semantic roles & 50–950 ramp

primary

#263FAB

secondary

#C5B368

accent

#C841E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #263FAB

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

Preview Lab → · Contrast checker → · Palette generator →