#281D88#281D88

#281D88 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.2% C 0.167 H 276.8°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#281D88
RGB	rgb(40, 29, 136)
HSL	hsl(246, 65%, 32%)
HSV	hsv(246, 79%, 53%)
CMYK	cmyk(70.6%, 78.7%, 0%, 46.7%)
CIE-LAB	lab(20.47, 39.17, -57.24)
CIE-LCH	lch(20.47, 69.36, 304.39°)
OKLab	oklab(33.15% 0.0198 -0.1654)
OKLCH	oklch(33.15% 0.167 276.8)
XYZ	xyz(5.7569, 3.1069, 23.5841)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281D88 #7D881D

analogous

#1D4888 #281D88 #5D1D88

triadic

#281D88 #88281D #1D8828

tetradic

#281D88 #881D48 #7D881D #1D885D

square

#281D88 #881D48 #7D881D #1D885D

split-complementary

#281D88 #885D1D #48881D

monochromatic

#0A0723 #191256 #281D88 #3728BA #5648D8

Accessibility & contrast

On white

12.95

#281D88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#281D88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281D88

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281D88	#FFFFFF	#000000	##FFFFFF
##281D88	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368B

Deuteranopia (green-blind)

#002D86

Tritanopia (blue-blind)

#003D52

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #281d88;
/* rgb */ color: rgb(40, 29, 136);
/* oklch */ color: oklch(33.2% 0.167 276.8);

Tailwind

colors: {
  custom: {
    50: '#715bac',
    500: '#281d88',
    950: '#000000',
  },
}

SCSS

$custom: #281d88;
$custom-light: #715bac;
$custom-dark: #000000;

JSON

{
  "hex": "#281d88",
  "rgb": {
    "r": 40,
    "g": 29,
    "b": 136
  },
  "hsl": {
    "h": 246.168,
    "s": 64.848,
    "l": 32.353
  },
  "oklch": {
    "l": 0.33152,
    "c": 0.16659,
    "h": 276.8
  },
  "luminance": 0.03107
}

Semantic roles & 50–950 ramp

primary

#281D88

secondary

#AEBA47

accent

#E840D7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281D88

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

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