#21001C#21001C

#21001C is a very dark, moderate purple. Relative luminance 0.004; OKLCH L 17.0% C 0.076 H 334.8°. Best body text is #FFFFFF at 19.42:1 contrast (WCAG AA passes).

Color values

HEX	#21001C
RGB	rgb(33, 0, 28)
HSL	hsl(309, 100%, 6%)
HSV	hsv(309, 100%, 13%)
CMYK	cmyk(0%, 100%, 15.2%, 87.1%)
CIE-LAB	lab(3.68, 18.42, -9.73)
CIE-LCH	lch(3.68, 20.83, 332.15°)
OKLab	oklab(16.99% 0.0684 -0.0322)
OKLCH	oklch(16.99% 0.076 334.8)
XYZ	xyz(0.8368, 0.4073, 1.1329)
Luminance	0.0041 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21001C #002105

analogous

#160021 #21001C #21000C

triadic

#21001C #1C2100 #001C21

tetradic

#21001C #211600 #002105 #000C21

square

#21001C #211600 #002105 #000C21

split-complementary

#21001C #0C2100 #002116

monochromatic

#1F001A #1F001A #21001C #5E0050 #9B0084

Accessibility & contrast

On white

19.42

#21001C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.08

#21001C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21001C

19.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21001C	#FFFFFF	#000000	##FFFFFF
##21001C	1.00	19.42	1.08	19.42
#FFFFFF	19.42	1.00	21.00	1.00
#000000	1.08	21.00	1.00	21.00
##FFFFFF	19.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000A1D

Deuteranopia (green-blind)

#0A0F1B

Tritanopia (blue-blind)

#23020C

Achromatopsia (no color)

#0D0D0D

Design tokens & code

CSS

--color: #21001c;
/* rgb */ color: rgb(33, 0, 28);
/* oklch */ color: oklch(17.0% 0.076 334.8);

Tailwind

colors: {
  custom: {
    50: '#5c4658',
    500: '#21001c',
    950: '#000000',
  },
}

SCSS

$custom: #21001c;
$custom-light: #5c4658;
$custom-dark: #000000;

JSON

{
  "hex": "#21001c",
  "rgb": {
    "r": 33,
    "g": 0,
    "b": 28
  },
  "hsl": {
    "h": 309.091,
    "s": 100,
    "l": 6.471
  },
  "oklch": {
    "l": 0.1699,
    "c": 0.07562,
    "h": 334.8
  },
  "luminance": 0.00407
}

Semantic roles & 50–950 ramp

primary

#21001C

secondary

#136A20

accent

#FF4929

background

#F5F3F5

surface

#E9E5E9

border

#C5C1C5

text

#040003

muted

#797778

Preview Lab

Preview with #21001C

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

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