#21001F#21001F

#21001F is a very dark, moderate purple. Relative luminance 0.004; OKLCH L 17.2% C 0.078 H 330.9°. Best body text is #FFFFFF at 19.37:1 contrast (WCAG AA passes).

Color values

HEX	#21001F
RGB	rgb(33, 0, 31)
HSL	hsl(304, 100%, 6%)
HSV	hsv(304, 100%, 13%)
CMYK	cmyk(0%, 100%, 6.1%, 87.1%)
CIE-LAB	lab(3.81, 19.36, -11.91)
CIE-LCH	lch(3.81, 22.74, 328.40°)
OKLab	oklab(17.22% 0.0683 -0.0381)
OKLCH	oklch(17.22% 0.078 330.9)
XYZ	xyz(0.8745, 0.4223, 1.3315)
Luminance	0.0042 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21001F #002102

analogous

#130021 #21001F #21000F

triadic

#21001F #1F2100 #001F21

tetradic

#21001F #211300 #002102 #000F21

square

#21001F #211300 #002102 #000F21

split-complementary

#21001F #0F2100 #002113

monochromatic

#1F001D #1F001D #21001F #5E0058 #9B0092

Accessibility & contrast

On white

19.37

#21001F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#21001F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21001F

19.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21001F	#FFFFFF	#000000	##FFFFFF
##21001F	1.00	19.37	1.08	19.37
#FFFFFF	19.37	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000A20

Deuteranopia (green-blind)

#080F1E

Tritanopia (blue-blind)

#23030E

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #21001f;
/* rgb */ color: rgb(33, 0, 31);
/* oklch */ color: oklch(17.2% 0.078 330.9);

Tailwind

colors: {
  custom: {
    50: '#5c465a',
    500: '#21001f',
    950: '#000000',
  },
}

SCSS

$custom: #21001f;
$custom-light: #5c465a;
$custom-dark: #000000;

JSON

{
  "hex": "#21001f",
  "rgb": {
    "r": 33,
    "g": 0,
    "b": 31
  },
  "hsl": {
    "h": 303.636,
    "s": 100,
    "l": 6.471
  },
  "oklch": {
    "l": 0.17222,
    "c": 0.07816,
    "h": 330.9
  },
  "luminance": 0.00422
}

Semantic roles & 50–950 ramp

primary

#21001F

secondary

#136A18

accent

#FF3629

background

#F5F3F5

surface

#E9E5E9

border

#C5C1C5

text

#040004

muted

#797779

Preview Lab

Preview with #21001F

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

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