#281C88#281C88

#281C88 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.0% C 0.168 H 277.0°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#281C88
RGB	rgb(40, 28, 136)
HSL	hsl(247, 66%, 32%)
HSV	hsv(247, 79%, 53%)
CMYK	cmyk(70.6%, 79.4%, 0%, 46.7%)
CIE-LAB	lab(20.28, 39.72, -57.55)
CIE-LCH	lch(20.28, 69.92, 304.61°)
OKLab	oklab(33.02% 0.0203 -0.1663)
OKLCH	oklch(33.02% 0.168 277)
XYZ	xyz(5.7328, 3.0587, 23.5760)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C88 #7C881C

analogous

#1C4688 #281C88 #5E1C88

triadic

#281C88 #88281C #1C8828

tetradic

#281C88 #881C46 #7C881C #1C885E

square

#281C88 #881C46 #7C881C #1C885E

split-complementary

#281C88 #885E1C #46881C

monochromatic

#0A0722 #191255 #281C88 #3726BB #5646D9

Accessibility & contrast

On white

13.03

#281C88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#281C88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C88

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C88	#FFFFFF	#000000	##FFFFFF
##281C88	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358B

Deuteranopia (green-blind)

#002C86

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #281c88;
/* rgb */ color: rgb(40, 28, 136);
/* oklch */ color: oklch(33.0% 0.168 277.0);

Tailwind

colors: {
  custom: {
    50: '#715bac',
    500: '#281c88',
    950: '#000000',
  },
}

SCSS

$custom: #281c88;
$custom-light: #715bac;
$custom-dark: #000000;

JSON

{
  "hex": "#281c88",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 136
  },
  "hsl": {
    "h": 246.667,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.33019,
    "c": 0.16755,
    "h": 277
  },
  "luminance": 0.03059
}

Semantic roles & 50–950 ramp

primary

#281C88

secondary

#ADBA45

accent

#E93FD6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281C88

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

Preview Lab → · Contrast checker → · Palette generator →