#282D8E#282D8E

#282D8E is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.3% C 0.157 H 273.2°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#282D8E
RGB	rgb(40, 45, 142)
HSL	hsl(237, 56%, 36%)
HSV	hsv(237, 72%, 56%)
CMYK	cmyk(71.8%, 68.3%, 0%, 44.3%)
CIE-LAB	lab(24.58, 31.59, -54.21)
CIE-LCH	lch(24.58, 62.74, 300.23°)
OKLab	oklab(36.28% 0.0088 -0.1567)
OKLCH	oklch(36.28% 0.157 273.2)
XYZ	xyz(6.6943, 4.2802, 26.0593)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282D8E #8E8928

analogous

#28608E #282D8E #56288E

triadic

#282D8E #8E282D #2D8E28

tetradic

#282D8E #8E2860 #8E8928 #288E56

square

#282D8E #8E2860 #8E8928 #288E56

split-complementary

#282D8E #8E5628 #608E28

monochromatic

#0D0F2F #1B1E5E #282D8E #353CBE #5F64D2

Accessibility & contrast

On white

11.31

#282D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#282D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282D8E

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282D8E	#FFFFFF	#000000	##FFFFFF
##282D8E	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F91

Deuteranopia (green-blind)

#00368C

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #282d8e;
/* rgb */ color: rgb(40, 45, 142);
/* oklch */ color: oklch(36.3% 0.157 273.2);

Tailwind

colors: {
  custom: {
    50: '#7166b0',
    500: '#282d8e',
    950: '#000000',
  },
}

SCSS

$custom: #282d8e;
$custom-light: #7166b0;
$custom-dark: #000000;

JSON

{
  "hex": "#282d8e",
  "rgb": {
    "r": 40,
    "g": 45,
    "b": 142
  },
  "hsl": {
    "h": 237.059,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36276,
    "c": 0.1569,
    "h": 273.2
  },
  "luminance": 0.04281
}

Semantic roles & 50–950 ramp

primary

#282D8E

secondary

#B7B35B

accent

#D848DF

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090611

muted

#7B7A80

Preview Lab

Preview with #282D8E

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

Preview Lab → · Contrast checker → · Palette generator →