#21011C#21011C

#21011C is a very dark, moderate purple. Relative luminance 0.004; OKLCH L 17.2% C 0.072 H 334.9°. Best body text is #FFFFFF at 19.34:1 contrast (WCAG AA passes).

Color values

HEX	#21011C
RGB	rgb(33, 1, 28)
HSL	hsl(309, 94%, 7%)
HSV	hsv(309, 97%, 13%)
CMYK	cmyk(0%, 97%, 15.2%, 87.1%)
CIE-LAB	lab(3.88, 18.02, -9.44)
CIE-LCH	lch(3.88, 20.34, 332.35°)
OKLab	oklab(17.22% 0.0656 -0.0307)
OKLCH	oklch(17.22% 0.072 334.9)
XYZ	xyz(0.8477, 0.4290, 1.1365)
Luminance	0.0043 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21011C #012106

analogous

#160121 #21011C #21010C

triadic

#21011C #1C2101 #011C21

tetradic

#21011C #211601 #012106 #010C21

square

#21011C #211601 #012106 #010C21

split-complementary

#21011C #0C2101 #012116

monochromatic

#1E0119 #1E0119 #21011C #5C034E #980581

Accessibility & contrast

On white

19.34

#21011C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#21011C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21011C

19.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21011C	#FFFFFF	#000000	##FFFFFF
##21011C	1.00	19.34	1.09	19.34
#FFFFFF	19.34	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#010A1D

Deuteranopia (green-blind)

#0B101B

Tritanopia (blue-blind)

#23030C

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #21011c;
/* rgb */ color: rgb(33, 1, 28);
/* oklch */ color: oklch(17.2% 0.072 334.9);

Tailwind

colors: {
  custom: {
    50: '#5c4658',
    500: '#21011c',
    950: '#000000',
  },
}

SCSS

$custom: #21011c;
$custom-light: #5c4658;
$custom-dark: #000000;

JSON

{
  "hex": "#21011c",
  "rgb": {
    "r": 33,
    "g": 1,
    "b": 28
  },
  "hsl": {
    "h": 309.375,
    "s": 94.118,
    "l": 6.667
  },
  "oklch": {
    "l": 0.17219,
    "c": 0.07245,
    "h": 334.9
  },
  "luminance": 0.00429
}

Semantic roles & 50–950 ramp

primary

#21011C

secondary

#156822

accent

#FF4A29

background

#F5F3F5

surface

#E9E5E9

border

#C5C1C5

text

#040003

muted

#797778

Preview Lab

Preview with #21011C

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

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