#21011F#21011F

#21011F is a very dark, moderate purple. Relative luminance 0.004; OKLCH L 17.4% C 0.075 H 330.8°. Best body text is #FFFFFF at 19.29:1 contrast (WCAG AA passes).

Color values

HEX	#21011F
RGB	rgb(33, 1, 31)
HSL	hsl(304, 94%, 7%)
HSV	hsv(304, 97%, 13%)
CMYK	cmyk(0%, 97%, 6.1%, 87.1%)
CIE-LAB	lab(4.01, 18.95, -11.62)
CIE-LCH	lch(4.01, 22.23, 328.49°)
OKLab	oklab(17.44% 0.0656 -0.0366)
OKLCH	oklch(17.44% 0.075 330.8)
XYZ	xyz(0.8854, 0.4440, 1.3351)
Luminance	0.0044 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21011F #012103

analogous

#130121 #21011F #21010F

triadic

#21011F #1F2101 #011F21

tetradic

#21011F #211301 #012103 #010F21

square

#21011F #211301 #012103 #010F21

split-complementary

#21011F #0F2101 #012113

monochromatic

#1E011C #1E011C #21011F #5C0357 #98058F

Accessibility & contrast

On white

19.29

#21011F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.09

#21011F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21011F

19.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21011F	#FFFFFF	#000000	##FFFFFF
##21011F	1.00	19.29	1.09	19.29
#FFFFFF	19.29	1.00	21.00	1.00
#000000	1.09	21.00	1.00	21.00
##FFFFFF	19.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000B20

Deuteranopia (green-blind)

#09101E

Tritanopia (blue-blind)

#23040E

Achromatopsia (no color)

#0E0E0E

Design tokens & code

CSS

--color: #21011f;
/* rgb */ color: rgb(33, 1, 31);
/* oklch */ color: oklch(17.4% 0.075 330.8);

Tailwind

colors: {
  custom: {
    50: '#5c465a',
    500: '#21011f',
    950: '#000000',
  },
}

SCSS

$custom: #21011f;
$custom-light: #5c465a;
$custom-dark: #000000;

JSON

{
  "hex": "#21011f",
  "rgb": {
    "r": 33,
    "g": 1,
    "b": 31
  },
  "hsl": {
    "h": 303.75,
    "s": 94.118,
    "l": 6.667
  },
  "oklch": {
    "l": 0.17444,
    "c": 0.07512,
    "h": 330.8
  },
  "luminance": 0.00444
}

Semantic roles & 50–950 ramp

primary

#21011F

secondary

#15681B

accent

#FF3629

background

#F5F3F5

surface

#E9E5E9

border

#C5C1C5

text

#040004

muted

#797779

Preview Lab

Preview with #21011F

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

Preview Lab → · Contrast checker → · Palette generator →