#282D81#282D81

#282D81 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.0% C 0.139 H 274.1°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#282D81
RGB	rgb(40, 45, 129)
HSL	hsl(237, 53%, 33%)
HSV	hsv(237, 69%, 51%)
CMYK	cmyk(69%, 65.1%, 0%, 49.4%)
CIE-LAB	lab(23.38, 26.82, -48.05)
CIE-LCH	lch(23.38, 55.03, 299.17°)
OKLab	oklab(35.03% 0.0099 -0.1386)
OKLCH	oklch(35.03% 0.139 274.1)
XYZ	xyz(5.7746, 3.9123, 21.2155)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282D81 #817C28

analogous

#285981 #282D81 #4F2881

triadic

#282D81 #81282D #2D8128

tetradic

#282D81 #812859 #817C28 #28814F

square

#282D81 #812859 #817C28 #28814F

split-complementary

#282D81 #814F28 #598128

monochromatic

#0B0C24 #1A1D52 #282D81 #363DB0 #585FCB

Accessibility & contrast

On white

11.78

#282D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#282D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282D81

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282D81	#FFFFFF	#000000	##FFFFFF
##282D81	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C84

Deuteranopia (green-blind)

#00347F

Tritanopia (blue-blind)

#004252

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #282d81;
/* rgb */ color: rgb(40, 45, 129);
/* oklch */ color: oklch(35.0% 0.139 274.1);

Tailwind

colors: {
  custom: {
    50: '#6e66a6',
    500: '#282d81',
    950: '#000000',
  },
}

SCSS

$custom: #282d81;
$custom-light: #6e66a6;
$custom-dark: #000000;

JSON

{
  "hex": "#282d81",
  "rgb": {
    "r": 40,
    "g": 45,
    "b": 129
  },
  "hsl": {
    "h": 236.629,
    "s": 52.663,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35033,
    "c": 0.13894,
    "h": 274.1
  },
  "luminance": 0.03913
}

Semantic roles & 50–950 ramp

primary

#282D81

secondary

#B0AB54

accent

#D44CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #282D81

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

Preview Lab → · Contrast checker → · Palette generator →