#210B2B#210B2B

#210B2B is a very dark, moderate purple. Relative luminance 0.007; OKLCH L 20.3% C 0.066 H 313.8°. Best body text is #FFFFFF at 18.30:1 contrast (WCAG AA passes).

Color values

HEX	#210B2B
RGB	rgb(33, 11, 43)
HSL	hsl(281, 59%, 11%)
HSV	hsv(281, 74%, 17%)
CMYK	cmyk(23.3%, 74.4%, 0%, 83.1%)
CIE-LAB	lab(6.66, 18.20, -16.74)
CIE-LCH	lch(6.66, 24.73, 317.40°)
OKLab	oklab(20.26% 0.0454 -0.0474)
OKLCH	oklch(20.26% 0.066 313.8)
XYZ	xyz(1.1828, 0.7371, 2.3650)
Luminance	0.0074 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210B2B #152B0B

analogous

#110B2B #210B2B #2B0B25

triadic

#210B2B #2B210B #0B2B21

tetradic

#210B2B #2B110B #152B0B #0B252B

square

#210B2B #2B110B #152B0B #0B252B

split-complementary

#210B2B #252B0B #0B2B11

monochromatic

#130618 #130618 #210B2B #46175C #6C248C

Accessibility & contrast

On white

18.30

#210B2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.15

#210B2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210B2B

18.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210B2B	#FFFFFF	#000000	##FFFFFF
##210B2B	1.00	18.30	1.15	18.30
#FFFFFF	18.30	1.00	21.00	1.00
#000000	1.15	21.00	1.00	21.00
##FFFFFF	18.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03142C

Deuteranopia (green-blind)

#0A152A

Tritanopia (blue-blind)

#201119

Achromatopsia (no color)

#151515

Design tokens & code

CSS

--color: #210b2b;
/* rgb */ color: rgb(33, 11, 43);
/* oklch */ color: oklch(20.3% 0.066 313.8);

Tailwind

colors: {
  custom: {
    50: '#5d4b64',
    500: '#210b2b',
    950: '#000000',
  },
}

SCSS

$custom: #210b2b;
$custom-light: #5d4b64;
$custom-dark: #000000;

JSON

{
  "hex": "#210b2b",
  "rgb": {
    "r": 33,
    "g": 11,
    "b": 43
  },
  "hsl": {
    "h": 281.25,
    "s": 59.259,
    "l": 10.588
  },
  "oklch": {
    "l": 0.20256,
    "c": 0.06561,
    "h": 313.8
  },
  "luminance": 0.00737
}

Semantic roles & 50–950 ramp

primary

#210B2B

secondary

#3E672B

accent

#E24576

background

#F5F4F6

surface

#E9E7EB

border

#C5C3C6

text

#040105

muted

#79777A

Preview Lab

Preview with #210B2B

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

Preview Lab → · Contrast checker → · Palette generator →