#282F81#282F81

#282F81 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.4% C 0.136 H 273.4°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#282F81
RGB	rgb(40, 47, 129)
HSL	hsl(235, 53%, 33%)
HSV	hsv(235, 69%, 51%)
CMYK	cmyk(69%, 63.6%, 0%, 49.4%)
CIE-LAB	lab(23.90, 25.47, -47.21)
CIE-LCH	lch(23.90, 53.64, 298.35°)
OKLab	oklab(35.41% 0.0082 -0.1361)
OKLCH	oklch(35.41% 0.136 273.4)
XYZ	xyz(5.8527, 4.0686, 21.2415)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282F81 #817A28

analogous

#285B81 #282F81 #4D2881

triadic

#282F81 #81282F #2F8128

tetradic

#282F81 #81285B #817A28 #28814D

square

#282F81 #81285B #817A28 #28814D

split-complementary

#282F81 #814D28 #5B8128

monochromatic

#0B0D24 #1A1E52 #282F81 #3640B0 #5861CB

Accessibility & contrast

On white

11.58

#282F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#282F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282F81

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282F81	#FFFFFF	#000000	##FFFFFF
##282F81	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D84

Deuteranopia (green-blind)

#00357F

Tritanopia (blue-blind)

#004453

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #282f81;
/* rgb */ color: rgb(40, 47, 129);
/* oklch */ color: oklch(35.4% 0.136 273.4);

Tailwind

colors: {
  custom: {
    50: '#6e67a6',
    500: '#282f81',
    950: '#000000',
  },
}

SCSS

$custom: #282f81;
$custom-light: #6e67a6;
$custom-dark: #000000;

JSON

{
  "hex": "#282f81",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 129
  },
  "hsl": {
    "h": 235.281,
    "s": 52.663,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35413,
    "c": 0.13634,
    "h": 273.4
  },
  "luminance": 0.04069
}

Semantic roles & 50–950 ramp

primary

#282F81

secondary

#B0A954

accent

#D14CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08060F

muted

#7B7A7F

Preview Lab

Preview with #282F81

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

Preview Lab → · Contrast checker → · Palette generator →