#281B66#281B66

#281B66 is a dark, vivid violet. Relative luminance 0.022; OKLCH L 29.2% C 0.124 H 283.5°. Best body text is #FFFFFF at 14.60:1 contrast (WCAG AA passes).

Color values

HEX	#281B66
RGB	rgb(40, 27, 102)
HSL	hsl(250, 58%, 25%)
HSV	hsv(250, 74%, 40%)
CMYK	cmyk(60.8%, 73.5%, 0%, 60%)
CIE-LAB	lab(16.47, 28.94, -41.98)
CIE-LCH	lch(16.47, 50.99, 304.58°)
OKLab	oklab(29.25% 0.0291 -0.1208)
OKLCH	oklch(29.25% 0.124 283.5)
XYZ	xyz(3.6645, 2.1941, 12.7982)
Luminance	0.0219 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#281B66 #59661B

analogous

#1B3366 #281B66 #4D1B66

triadic

#281B66 #66281B #1B6628

tetradic

#281B66 #661B33 #59661B #1B664D

square

#281B66 #661B33 #59661B #1B664D

split-complementary

#281B66 #664D1B #33661B

monochromatic

#090618 #150E36 #281B66 #3B2896 #4E35C7

Accessibility & contrast

On white

14.60

#281B66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#281B66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #281B66

14.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##281B66	#FFFFFF	#000000	##FFFFFF
##281B66	1.00	14.60	1.44	14.60
#FFFFFF	14.60	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B68

Deuteranopia (green-blind)

#002665

Tritanopia (blue-blind)

#072F3E

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #281b66;
/* rgb */ color: rgb(40, 27, 102);
/* oklch */ color: oklch(29.2% 0.124 283.5);

Tailwind

colors: {
  custom: {
    50: '#6a5892',
    500: '#281b66',
    950: '#000000',
  },
}

SCSS

$custom: #281b66;
$custom-light: #6a5892;
$custom-dark: #000000;

JSON

{
  "hex": "#281b66",
  "rgb": {
    "r": 40,
    "g": 27,
    "b": 102
  },
  "hsl": {
    "h": 250.4,
    "s": 58.14,
    "l": 25.294
  },
  "oklch": {
    "l": 0.29246,
    "c": 0.12427,
    "h": 283.5
  },
  "luminance": 0.02194
}

Semantic roles & 50–950 ramp

primary

#281B66

secondary

#8C9B41

accent

#E146C7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#07030D

muted

#7A787E

Preview Lab

Preview with #281B66

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

Preview Lab → · Contrast checker → · Palette generator →