#263D8B#263D8B

#263D8B is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.0% C 0.133 H 267.5°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#263D8B
RGB	rgb(38, 61, 139)
HSL	hsl(226, 57%, 35%)
HSV	hsv(226, 73%, 55%)
CMYK	cmyk(72.7%, 56.1%, 0%, 45.5%)
CIE-LAB	lab(28.41, 19.40, -46.10)
CIE-LCH	lch(28.41, 50.02, 292.82°)
OKLab	oklab(39.01% -0.0059 -0.1327)
OKLCH	oklch(39.01% 0.133 267.5)
XYZ	xyz(7.1267, 5.6129, 25.1289)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#263D8B #8B7426

analogous

#266F8B #263D8B #42268B

triadic

#263D8B #8B263D #3D8B26

tetradic

#263D8B #8B266F #8B7426 #268B42

square

#263D8B #8B266F #8B7426 #268B42

split-complementary

#263D8B #8B4226 #6F8B26

monochromatic

#0C132B #19285B #263D8B #3352BB #5A75D2

Accessibility & contrast

On white

9.89

#263D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#263D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #263D8B

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##263D8B	#FFFFFF	#000000	##FFFFFF
##263D8B	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00488E

Deuteranopia (green-blind)

#003F89

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #263d8b;
/* rgb */ color: rgb(38, 61, 139);
/* oklch */ color: oklch(39.0% 0.133 267.5);

Tailwind

colors: {
  custom: {
    50: '#6e72ad',
    500: '#263d8b',
    950: '#000000',
  },
}

SCSS

$custom: #263d8b;
$custom-light: #6e72ad;
$custom-dark: #000000;

JSON

{
  "hex": "#263d8b",
  "rgb": {
    "r": 38,
    "g": 61,
    "b": 139
  },
  "hsl": {
    "h": 226.337,
    "s": 57.062,
    "l": 34.706
  },
  "oklch": {
    "l": 0.39007,
    "c": 0.13285,
    "h": 267.5
  },
  "luminance": 0.05614
}

Semantic roles & 50–950 ramp

primary

#263D8B

secondary

#B7A156

accent

#BE47E0

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #263D8B

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

Preview Lab → · Contrast checker → · Palette generator →