#282F8A#282F8A

#282F8A is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.2% C 0.149 H 273.0°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#282F8A
RGB	rgb(40, 47, 138)
HSL	hsl(236, 55%, 35%)
HSV	hsv(236, 71%, 54%)
CMYK	cmyk(71%, 65.9%, 0%, 45.9%)
CIE-LAB	lab(24.70, 28.81, -51.53)
CIE-LCH	lch(24.70, 59.04, 299.21°)
OKLab	oklab(36.25% 0.0077 -0.1488)
OKLCH	oklch(36.25% 0.149 273)
XYZ	xyz(6.4775, 4.3185, 24.5320)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282F8A #8A8328

analogous

#28608A #282F8A #52288A

triadic

#282F8A #8A282F #2F8A28

tetradic

#282F8A #8A2860 #8A8328 #288A52

square

#282F8A #8A2860 #8A8328 #288A52

split-complementary

#282F8A #8A5228 #608A28

monochromatic

#0C0F2B #1A1F5B #282F8A #363FB9 #5D65D0

Accessibility & contrast

On white

11.27

#282F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#282F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282F8A

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282F8A	#FFFFFF	#000000	##FFFFFF
##282F8A	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8D

Deuteranopia (green-blind)

#003688

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #282f8a;
/* rgb */ color: rgb(40, 47, 138);
/* oklch */ color: oklch(36.2% 0.149 273.0);

Tailwind

colors: {
  custom: {
    50: '#7067ad',
    500: '#282f8a',
    950: '#000000',
  },
}

SCSS

$custom: #282f8a;
$custom-light: #7067ad;
$custom-dark: #000000;

JSON

{
  "hex": "#282f8a",
  "rgb": {
    "r": 40,
    "g": 47,
    "b": 138
  },
  "hsl": {
    "h": 235.714,
    "s": 55.056,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36249,
    "c": 0.14898,
    "h": 273
  },
  "luminance": 0.04319
}

Semantic roles & 50–950 ramp

primary

#282F8A

secondary

#B5AF59

accent

#D449DE

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #282F8A

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

Preview Lab → · Contrast checker → · Palette generator →