#21012B#21012B

#21012B is a very dark, moderate purple. Relative luminance 0.005; OKLCH L 18.5% C 0.087 H 317.1°. Best body text is #FFFFFF at 19.03:1 contrast (WCAG AA passes).

Color values

HEX	#21012B
RGB	rgb(33, 1, 43)
HSL	hsl(286, 95%, 9%)
HSV	hsv(286, 98%, 17%)
CMYK	cmyk(23.3%, 97.7%, 0%, 83.1%)
CIE-LAB	lab(4.69, 23.01, -19.84)
CIE-LCH	lch(4.69, 30.38, 319.23°)
OKLab	oklab(18.49% 0.0633 -0.0589)
OKLCH	oklch(18.49% 0.087 317.1)
XYZ	xyz(1.0740, 0.5195, 2.3287)
Luminance	0.0052 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21012B #0B2B01

analogous

#0C012B #21012B #2B0120

triadic

#21012B #2B2101 #012B21

tetradic

#21012B #2B0C01 #0B2B01 #01202B

square

#21012B #2B0C01 #0B2B01 #01202B

split-complementary

#21012B #202B01 #012B0C

monochromatic

#17011E #17011E #21012B #4F0267 #7D04A3

Accessibility & contrast

On white

19.03

#21012B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.10

#21012B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21012B

19.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21012B	#FFFFFF	#000000	##FFFFFF
##21012B	1.00	19.03	1.10	19.03
#FFFFFF	19.03	1.00	21.00	1.00
#000000	1.10	21.00	1.00	21.00
##FFFFFF	19.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#000E2C

Deuteranopia (green-blind)

#01112A

Tritanopia (blue-blind)

#200915

Achromatopsia (no color)

#101010

Design tokens & code

CSS

--color: #21012b;
/* rgb */ color: rgb(33, 1, 43);
/* oklch */ color: oklch(18.5% 0.087 317.1);

Tailwind

colors: {
  custom: {
    50: '#5d4664',
    500: '#21012b',
    950: '#000000',
  },
}

SCSS

$custom: #21012b;
$custom-light: #5d4664;
$custom-dark: #000000;

JSON

{
  "hex": "#21012b",
  "rgb": {
    "r": 33,
    "g": 1,
    "b": 43
  },
  "hsl": {
    "h": 285.714,
    "s": 95.455,
    "l": 8.627
  },
  "oklch": {
    "l": 0.18487,
    "c": 0.08652,
    "h": 317.1
  },
  "luminance": 0.00519
}

Semantic roles & 50–950 ramp

primary

#21012B

secondary

#2C7117

accent

#FF295C

background

#F5F3F6

surface

#E9E5EB

border

#C5C1C6

text

#040005

muted

#79777A

Preview Lab

Preview with #21012B

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

Preview Lab → · Contrast checker → · Palette generator →