#263A8D#263A8D

#263A8D is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.5% C 0.140 H 268.7°. Best body text is #FFFFFF at 10.13:1 contrast (WCAG AA passes).

Color values

HEX	#263A8D
RGB	rgb(38, 58, 141)
HSL	hsl(228, 58%, 35%)
HSV	hsv(228, 73%, 55%)
CMYK	cmyk(73%, 58.9%, 0%, 44.7%)
CIE-LAB	lab(27.74, 22.23, -48.44)
CIE-LCH	lch(27.74, 53.29, 294.66°)
OKLab	oklab(38.55% -0.0033 -0.1396)
OKLCH	oklch(38.55% 0.14 268.7)
XYZ	xyz(7.1184, 5.3605, 25.8537)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263A8D #8D7926

analogous

#266D8D #263A8D #46268D

triadic

#263A8D #8D263A #3A8D26

tetradic

#263A8D #8D266D #8D7926 #268D46

square

#263A8D #8D266D #8D7926 #268D46

split-complementary

#263A8D #8D4626 #6D8D26

monochromatic

#0C122D #19265D #263A8D #334EBD #5B72D3

Accessibility & contrast

On white

10.13

#263A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#263A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263A8D

10.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263A8D	#FFFFFF	#000000	##FFFFFF
##263A8D	1.00	10.13	2.07	10.13
#FFFFFF	10.13	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004690

Deuteranopia (green-blind)

#003D8B

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #263a8d;
/* rgb */ color: rgb(38, 58, 141);
/* oklch */ color: oklch(38.5% 0.140 268.7);

Tailwind

colors: {
  custom: {
    50: '#6f6faf',
    500: '#263a8d',
    950: '#000000',
  },
}

SCSS

$custom: #263a8d;
$custom-light: #6f6faf;
$custom-dark: #000000;

JSON

{
  "hex": "#263a8d",
  "rgb": {
    "r": 38,
    "g": 58,
    "b": 141
  },
  "hsl": {
    "h": 228.35,
    "s": 57.542,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38549,
    "c": 0.13967,
    "h": 268.7
  },
  "luminance": 0.05361
}

Semantic roles & 50–950 ramp

primary

#263A8D

secondary

#B8A557

accent

#C347E1

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263A8D

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

Preview Lab → · Contrast checker → · Palette generator →