#283151#283151

#283151 is a dark, muted blue. Relative luminance 0.032; OKLCH L 32.1% C 0.059 H 270.9°. Best body text is #FFFFFF at 12.74:1 contrast (WCAG AA passes).

Color values

HEX	#283151
RGB	rgb(40, 49, 81)
HSL	hsl(227, 34%, 24%)
HSV	hsv(227, 51%, 32%)
CMYK	cmyk(50.6%, 39.5%, 0%, 68.2%)
CIE-LAB	lab(20.99, 6.25, -20.78)
CIE-LCH	lch(20.99, 21.70, 286.75°)
OKLab	oklab(32.11% 0.0009 -0.0585)
OKLCH	oklch(32.11% 0.059 270.9)
XYZ	xyz(3.4581, 3.2416, 8.2265)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#283151 #514828

analogous

#284551 #283151 #332851

triadic

#283151 #512831 #315128

tetradic

#283151 #512845 #514828 #285133

square

#283151 #512845 #514828 #285133

split-complementary

#283151 #513328 #455128

monochromatic

#0A0C14 #141828 #283151 #3C4A7A #5063A3

Accessibility & contrast

On white

12.74

#283151 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#283151 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #283151

12.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##283151	#FFFFFF	#000000	##FFFFFF
##283151	1.00	12.74	1.65	12.74
#FFFFFF	12.74	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253452

Deuteranopia (green-blind)

#213150

Tritanopia (blue-blind)

#19383D

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #283151;
/* rgb */ color: rgb(40, 49, 81);
/* oklch */ color: oklch(32.1% 0.059 270.9);

Tailwind

colors: {
  custom: {
    50: '#646882',
    500: '#283151',
    950: '#000000',
  },
}

SCSS

$custom: #283151;
$custom-light: #646882;
$custom-dark: #000000;

JSON

{
  "hex": "#283151",
  "rgb": {
    "r": 40,
    "g": 49,
    "b": 81
  },
  "hsl": {
    "h": 226.829,
    "s": 33.884,
    "l": 23.725
  },
  "oklch": {
    "l": 0.32108,
    "c": 0.05852,
    "h": 270.9
  },
  "luminance": 0.03242
}

Semantic roles & 50–950 ramp

primary

#283151

secondary

#847951

accent

#B25ECA

background

#F6F6F7

surface

#EBEBEE

border

#C6C6C9

text

#06060A

muted

#7A7A7C

Preview Lab

Preview with #283151

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

Preview Lab → · Contrast checker → · Palette generator →