#263A8A#263A8A

#263A8A is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.3% C 0.135 H 268.6°. Best body text is #FFFFFF at 10.22:1 contrast (WCAG AA passes).

Color values

HEX	#263A8A
RGB	rgb(38, 58, 138)
HSL	hsl(228, 57%, 35%)
HSV	hsv(228, 72%, 54%)
CMYK	cmyk(72.5%, 58%, 0%, 45.9%)
CIE-LAB	lab(27.50, 21.07, -46.97)
CIE-LCH	lch(27.50, 51.48, 294.16°)
OKLab	oklab(38.29% -0.0034 -0.1353)
OKLCH	oklch(38.29% 0.135 268.6)
XYZ	xyz(6.8982, 5.2725, 24.6940)
Luminance	0.0527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263A8A #8A7626

analogous

#266C8A #263A8A #44268A

triadic

#263A8A #8A263A #3A8A26

tetradic

#263A8A #8A266C #8A7626 #268A44

square

#263A8A #8A266C #8A7626 #268A44

split-complementary

#263A8A #8A4426 #6C8A26

monochromatic

#0C122A #19265A #263A8A #334EBA #5971D1

Accessibility & contrast

On white

10.22

#263A8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#263A8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263A8A

10.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263A8A	#FFFFFF	#000000	##FFFFFF
##263A8A	1.00	10.22	2.05	10.22
#FFFFFF	10.22	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468D

Deuteranopia (green-blind)

#003D88

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #263a8a;
/* rgb */ color: rgb(38, 58, 138);
/* oklch */ color: oklch(38.3% 0.135 268.6);

Tailwind

colors: {
  custom: {
    50: '#6e6fad',
    500: '#263a8a',
    950: '#000000',
  },
}

SCSS

$custom: #263a8a;
$custom-light: #6e6fad;
$custom-dark: #000000;

JSON

{
  "hex": "#263a8a",
  "rgb": {
    "r": 38,
    "g": 58,
    "b": 138
  },
  "hsl": {
    "h": 228,
    "s": 56.818,
    "l": 34.51
  },
  "oklch": {
    "l": 0.38293,
    "c": 0.13536,
    "h": 268.6
  },
  "luminance": 0.05273
}

Semantic roles & 50–950 ramp

primary

#263A8A

secondary

#B6A356

accent

#C248E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263A8A

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

Preview Lab → · Contrast checker → · Palette generator →