#281B5D#281B5D

#281B5D is a dark, moderate violet. Relative luminance 0.020; OKLCH L 28.4% C 0.112 H 285.9°. Best body text is #FFFFFF at 14.95:1 contrast (WCAG AA passes).

Color values

HEX	#281B5D
RGB	rgb(40, 27, 93)
HSL	hsl(252, 55%, 24%)
HSV	hsv(252, 71%, 36%)
CMYK	cmyk(57%, 71%, 0%, 63.5%)
CIE-LAB	lab(15.62, 25.87, -37.41)
CIE-LCH	lch(15.62, 45.49, 304.66°)
OKLab	oklab(28.37% 0.0306 -0.1074)
OKLCH	oklch(28.37% 0.112 285.9)
XYZ	xyz(3.2422, 2.0251, 10.5739)
Luminance	0.0203 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B5D #505D1B

analogous

#1B2F5D #281B5D #491B5D

triadic

#281B5D #5D281B #1B5D28

tetradic

#281B5D #5D1B2F #505D1B #1B5D49

square

#281B5D #5D1B2F #505D1B #1B5D49

split-complementary

#281B5D #5D491B #2F5D1B

monochromatic

#0A0718 #140D2E #281B5D #3C298C #5137BC

Accessibility & contrast

On white

14.95

#281B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#281B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B5D

14.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B5D	#FFFFFF	#000000	##FFFFFF
##281B5D	1.00	14.95	1.41	14.95
#FFFFFF	14.95	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00295F

Deuteranopia (green-blind)

#00255C

Tritanopia (blue-blind)

#122C39

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #281b5d;
/* rgb */ color: rgb(40, 27, 93);
/* oklch */ color: oklch(28.4% 0.112 285.9);

Tailwind

colors: {
  custom: {
    50: '#68588c',
    500: '#281b5d',
    950: '#000000',
  },
}

SCSS

$custom: #281b5d;
$custom-light: #68588c;
$custom-dark: #000000;

JSON

{
  "hex": "#281b5d",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 93
  },
  "hsl": {
    "h": 251.818,
    "s": 55,
    "l": 23.529
  },
  "oklch": {
    "l": 0.28366,
    "c": 0.11171,
    "h": 285.9
  },
  "luminance": 0.02025
}

Semantic roles & 50–950 ramp

primary

#281B5D

secondary

#839341

accent

#DE49C1

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#07030C

muted

#7A787D

Preview Lab

Preview with #281B5D

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

Preview Lab → · Contrast checker → · Palette generator →