#21102B#21102B

#21102B is a very dark, muted violet. Relative luminance 0.009; OKLCH L 21.2% C 0.056 H 311.6°. Best body text is #FFFFFF at 17.89:1 contrast (WCAG AA passes).

Color values

HEX	#21102B
RGB	rgb(33, 16, 43)
HSL	hsl(278, 46%, 12%)
HSV	hsv(278, 63%, 17%)
CMYK	cmyk(23.3%, 62.8%, 0%, 83.1%)
CIE-LAB	lab(7.84, 15.20, -14.86)
CIE-LCH	lch(7.84, 21.26, 315.64°)
OKLab	oklab(21.19% 0.0369 -0.0415)
OKLCH	oklch(21.19% 0.056 311.6)
XYZ	xyz(1.2485, 0.8684, 2.3869)
Luminance	0.0087 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21102B #1A2B10

analogous

#14102B #21102B #2B1028

triadic

#21102B #2B2110 #102B21

tetradic

#21102B #2B1410 #1A2B10 #10282B

square

#21102B #2B1410 #1A2B10 #10282B

split-complementary

#21102B #282B10 #102B14

monochromatic

#110816 #110816 #21102B #432158 #653184

Accessibility & contrast

On white

17.89

#21102B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.17

#21102B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21102B

17.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21102B	#FFFFFF	#000000	##FFFFFF
##21102B	1.00	17.89	1.17	17.89
#FFFFFF	17.89	1.00	21.00	1.00
#000000	1.17	21.00	1.00	21.00
##FFFFFF	17.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#09162C

Deuteranopia (green-blind)

#0E182A

Tritanopia (blue-blind)

#20141B

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #21102b;
/* rgb */ color: rgb(33, 16, 43);
/* oklch */ color: oklch(21.2% 0.056 311.6);

Tailwind

colors: {
  custom: {
    50: '#5d4e64',
    500: '#21102b',
    950: '#000000',
  },
}

SCSS

$custom: #21102b;
$custom-light: #5d4e64;
$custom-dark: #000000;

JSON

{
  "hex": "#21102b",
  "rgb": {
    "r": 33,
    "g": 16,
    "b": 43
  },
  "hsl": {
    "h": 277.778,
    "s": 45.763,
    "l": 11.569
  },
  "oklch": {
    "l": 0.21187,
    "c": 0.05551,
    "h": 311.6
  },
  "luminance": 0.00868
}

Semantic roles & 50–950 ramp

primary

#21102B

secondary

#456433

accent

#D55283

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#040105

muted

#79777A

Preview Lab

Preview with #21102B

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

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