#281B5E#281B5E

#281B5E is a dark, moderate violet. Relative luminance 0.020; OKLCH L 28.5% C 0.113 H 285.6°. Best body text is #FFFFFF at 14.91:1 contrast (WCAG AA passes).

Color values

HEX	#281B5E
RGB	rgb(40, 27, 94)
HSL	hsl(252, 55%, 24%)
HSV	hsv(252, 71%, 37%)
CMYK	cmyk(57.4%, 71.3%, 0%, 63.1%)
CIE-LAB	lab(15.71, 26.21, -37.93)
CIE-LCH	lch(15.71, 46.11, 304.65°)
OKLab	oklab(28.46% 0.0304 -0.1089)
OKLCH	oklch(28.46% 0.113 285.6)
XYZ	xyz(3.2868, 2.0430, 10.8086)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B5E #515E1B

analogous

#1B2F5E #281B5E #491B5E

triadic

#281B5E #5E281B #1B5E28

tetradic

#281B5E #5E1B2F #515E1B #1B5E49

square

#281B5E #5E1B2F #515E1B #1B5E49

split-complementary

#281B5E #5E491B #2F5E1B

monochromatic

#0A0718 #140D2E #281B5E #3C298E #5036BD

Accessibility & contrast

On white

14.91

#281B5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#281B5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B5E

14.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B5E	#FFFFFF	#000000	##FFFFFF
##281B5E	1.00	14.91	1.41	14.91
#FFFFFF	14.91	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002960

Deuteranopia (green-blind)

#00255D

Tritanopia (blue-blind)

#112C3A

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #281b5e;
/* rgb */ color: rgb(40, 27, 94);
/* oklch */ color: oklch(28.5% 0.113 285.6);

Tailwind

colors: {
  custom: {
    50: '#68588c',
    500: '#281b5e',
    950: '#000000',
  },
}

SCSS

$custom: #281b5e;
$custom-light: #68588c;
$custom-dark: #000000;

JSON

{
  "hex": "#281b5e",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 94
  },
  "hsl": {
    "h": 251.642,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.28462,
    "c": 0.11312,
    "h": 285.6
  },
  "luminance": 0.02043
}

Semantic roles & 50–950 ramp

primary

#281B5E

secondary

#849441

accent

#DF49C2

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#07030C

muted

#7A787D

Preview Lab

Preview with #281B5E

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

Preview Lab → · Contrast checker → · Palette generator →