#282B81#282B81

#282B81 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.7% C 0.141 H 274.7°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#282B81
RGB	rgb(40, 43, 129)
HSL	hsl(238, 53%, 33%)
HSV	hsv(238, 69%, 51%)
CMYK	cmyk(69%, 66.7%, 0%, 49.4%)
CIE-LAB	lab(22.87, 28.16, -48.88)
CIE-LCH	lch(22.87, 56.41, 299.94°)
OKLab	oklab(34.66% 0.0115 -0.141)
OKLCH	oklch(34.66% 0.142 274.7)
XYZ	xyz(5.7001, 3.7633, 21.1906)
Luminance	0.0376 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282B81 #817E28

analogous

#285781 #282B81 #522881

triadic

#282B81 #81282B #2B8128

tetradic

#282B81 #812857 #817E28 #288152

square

#282B81 #812857 #817E28 #288152

split-complementary

#282B81 #815228 #578128

monochromatic

#0B0C24 #1A1B52 #282B81 #363BB0 #585CCB

Accessibility & contrast

On white

11.98

#282B81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#282B81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282B81

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282B81	#FFFFFF	#000000	##FFFFFF
##282B81	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B84

Deuteranopia (green-blind)

#00337F

Tritanopia (blue-blind)

#004152

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #282b81;
/* rgb */ color: rgb(40, 43, 129);
/* oklch */ color: oklch(34.7% 0.141 274.7);

Tailwind

colors: {
  custom: {
    50: '#6e64a6',
    500: '#282b81',
    950: '#000000',
  },
}

SCSS

$custom: #282b81;
$custom-light: #6e64a6;
$custom-dark: #000000;

JSON

{
  "hex": "#282b81",
  "rgb": {
    "r": 40,
    "g": 43,
    "b": 129
  },
  "hsl": {
    "h": 237.978,
    "s": 52.663,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34662,
    "c": 0.1415,
    "h": 274.7
  },
  "luminance": 0.03764
}

Semantic roles & 50–950 ramp

primary

#282B81

secondary

#B0AD54

accent

#D74CDC

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#08050F

muted

#7B7A7F

Preview Lab

Preview with #282B81

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

Preview Lab → · Contrast checker → · Palette generator →