#281C83#281C83

#281C83 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.161 H 277.7°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#281C83
RGB	rgb(40, 28, 131)
HSL	hsl(247, 65%, 31%)
HSV	hsv(247, 79%, 51%)
CMYK	cmyk(69.5%, 78.6%, 0%, 48.6%)
CIE-LAB	lab(19.72, 38.08, -55.32)
CIE-LCH	lch(19.72, 67.16, 304.54°)
OKLab	oklab(32.46% 0.0216 -0.1598)
OKLCH	oklch(32.46% 0.161 277.7)
XYZ	xyz(5.3857, 2.9198, 21.7481)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281C83 #77831C

analogous

#1C4383 #281C83 #5B1C83

triadic

#281C83 #83281C #1C8328

tetradic

#281C83 #831C43 #77831C #1C835B

square

#281C83 #831C43 #77831C #1C835B

split-complementary

#281C83 #835B1C #43831C

monochromatic

#09061E #191151 #281C83 #3727B5 #5443D7

Accessibility & contrast

On white

13.26

#281C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#281C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281C83

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281C83	#FFFFFF	#000000	##FFFFFF
##281C83	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003486

Deuteranopia (green-blind)

#002B81

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #281c83;
/* rgb */ color: rgb(40, 28, 131);
/* oklch */ color: oklch(32.5% 0.161 277.7);

Tailwind

colors: {
  custom: {
    50: '#705ba8',
    500: '#281c83',
    950: '#000000',
  },
}

SCSS

$custom: #281c83;
$custom-light: #705ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#281c83",
  "rgb": {
    "r": 40,
    "g": 28,
    "b": 131
  },
  "hsl": {
    "h": 246.99,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32463,
    "c": 0.16129,
    "h": 277.7
  },
  "luminance": 0.0292
}

Semantic roles & 50–950 ramp

primary

#281C83

secondary

#A9B645

accent

#E840D4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #281C83

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

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