#282D8F#282D8F

#282D8F is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.4% C 0.158 H 273.1°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#282D8F
RGB	rgb(40, 45, 143)
HSL	hsl(237, 56%, 36%)
HSV	hsv(237, 72%, 56%)
CMYK	cmyk(72%, 68.5%, 0%, 43.9%)
CIE-LAB	lab(24.67, 31.95, -54.68)
CIE-LCH	lch(24.67, 63.33, 300.30°)
OKLab	oklab(36.37% 0.0087 -0.158)
OKLCH	oklch(36.37% 0.158 273.1)
XYZ	xyz(6.7697, 4.3104, 26.4565)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#282D8F #8F8A28

analogous

#28608F #282D8F #56288F

triadic

#282D8F #8F282D #2D8F28

tetradic

#282D8F #8F2860 #8F8A28 #288F56

square

#282D8F #8F2860 #8F8A28 #288F56

split-complementary

#282D8F #8F5628 #608F28

monochromatic

#0D0F2F #1B1E5F #282D8F #353CBF #5F65D2

Accessibility & contrast

On white

11.28

#282D8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#282D8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #282D8F

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##282D8F	#FFFFFF	#000000	##FFFFFF
##282D8F	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F92

Deuteranopia (green-blind)

#00368D

Tritanopia (blue-blind)

#00475A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #282d8f;
/* rgb */ color: rgb(40, 45, 143);
/* oklch */ color: oklch(36.4% 0.158 273.1);

Tailwind

colors: {
  custom: {
    50: '#7166b1',
    500: '#282d8f',
    950: '#000000',
  },
}

SCSS

$custom: #282d8f;
$custom-light: #7166b1;
$custom-dark: #000000;

JSON

{
  "hex": "#282d8f",
  "rgb": {
    "r": 40,
    "g": 45,
    "b": 143
  },
  "hsl": {
    "h": 237.087,
    "s": 56.284,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36374,
    "c": 0.15825,
    "h": 273.1
  },
  "luminance": 0.04311
}

Semantic roles & 50–950 ramp

primary

#282D8F

secondary

#B8B35B

accent

#D848E0

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #282D8F

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

Preview Lab → · Contrast checker → · Palette generator →