#210B3B#210B3B

#210B3B is a very dark, moderate violet. Relative luminance 0.009; OKLCH L 21.7% C 0.087 H 300.1°. Best body text is #FFFFFF at 17.86:1 contrast (WCAG AA passes).

Color values

HEX	#210B3B
RGB	rgb(33, 11, 59)
HSL	hsl(268, 69%, 14%)
HSV	hsv(268, 81%, 23%)
CMYK	cmyk(44.1%, 81.4%, 0%, 76.9%)
CIE-LAB	lab(7.93, 23.25, -26.45)
CIE-LCH	lch(7.93, 35.21, 311.32°)
OKLab	oklab(21.67% 0.0437 -0.0754)
OKLCH	oklch(21.67% 0.087 300.1)
XYZ	xyz(1.5361, 0.8784, 4.2254)
Luminance	0.0088 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#210B3B #253B0B

analogous

#0B0D3B #210B3B #390B3B

triadic

#210B3B #3B210B #0B3B21

tetradic

#210B3B #3B0B0D #253B0B #0B3B39

square

#210B3B #3B0B0D #253B0B #0B3B39

split-complementary

#210B3B #3B390B #0D3B0B

monochromatic

#0E051A #0E051A #210B3B #3E156F #5B1EA2

Accessibility & contrast

On white

17.86

#210B3B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.18

#210B3B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #210B3B

17.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##210B3B	#FFFFFF	#000000	##FFFFFF
##210B3B	1.00	17.86	1.18	17.86
#FFFFFF	17.86	1.00	21.00	1.00
#000000	1.18	21.00	1.00	21.00
##FFFFFF	17.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00173C

Deuteranopia (green-blind)

#00173A

Tritanopia (blue-blind)

#1B1722

Achromatopsia (no color)

#171717

Design tokens & code

CSS

--color: #210b3b;
/* rgb */ color: rgb(33, 11, 59);
/* oklch */ color: oklch(21.7% 0.087 300.1);

Tailwind

colors: {
  custom: {
    50: '#5f4c71',
    500: '#210b3b',
    950: '#000000',
  },
}

SCSS

$custom: #210b3b;
$custom-light: #5f4c71;
$custom-dark: #000000;

JSON

{
  "hex": "#210b3b",
  "rgb": {
    "r": 33,
    "g": 11,
    "b": 59
  },
  "hsl": {
    "h": 267.5,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.21665,
    "c": 0.08716,
    "h": 300.1
  },
  "luminance": 0.00878
}

Semantic roles & 50–950 ramp

primary

#210B3B

secondary

#54782A

accent

#EB3C9B

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#050108

muted

#79777B

Preview Lab

Preview with #210B3B

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

Preview Lab → · Contrast checker → · Palette generator →