#281C87#281C87

#281C87 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.9% C 0.166 H 277.1°. Best body text is #FFFFFF at 13.07:1 contrast (WCAG AA passes).

Color values

HEX	#281C87
RGB	rgb(40, 28, 135)
HSL	hsl(247, 66%, 32%)
HSV	hsv(247, 79%, 53%)
CMYK	cmyk(70.4%, 79.3%, 0%, 47.1%)
CIE-LAB	lab(20.17, 39.39, -57.11)
CIE-LCH	lch(20.17, 69.38, 304.60°)
OKLab	oklab(32.91% 0.0206 -0.165)
OKLCH	oklch(32.91% 0.166 277.1)
XYZ	xyz(5.6621, 3.0304, 23.2035)
Luminance	0.0303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C87 #7B871C

analogous

#1C4687 #281C87 #5E1C87

triadic

#281C87 #87281C #1C8728

tetradic

#281C87 #871C46 #7B871C #1C875E

square

#281C87 #871C46 #7B871C #1C875E

split-complementary

#281C87 #875E1C #46871C

monochromatic

#0A0722 #191154 #281C87 #3727BA #5645D8

Accessibility & contrast

On white

13.07

#281C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#281C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C87

13.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C87	#FFFFFF	#000000	##FFFFFF
##281C87	1.00	13.07	1.61	13.07
#FFFFFF	13.07	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358A

Deuteranopia (green-blind)

#002C85

Tritanopia (blue-blind)

#003C51

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #281c87;
/* rgb */ color: rgb(40, 28, 135);
/* oklch */ color: oklch(32.9% 0.166 277.1);

Tailwind

colors: {
  custom: {
    50: '#715bab',
    500: '#281c87',
    950: '#000000',
  },
}

SCSS

$custom: #281c87;
$custom-light: #715bab;
$custom-dark: #000000;

JSON

{
  "hex": "#281c87",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 135
  },
  "hsl": {
    "h": 246.729,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.32907,
    "c": 0.16631,
    "h": 277.1
  },
  "luminance": 0.03031
}

Semantic roles & 50–950 ramp

primary

#281C87

secondary

#ADBA45

accent

#E93FD6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281C87

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

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