#21103A#21103A

#21103A is a very dark, moderate violet. Relative luminance 0.010; OKLCH L 22.4% C 0.078 H 298.5°. Best body text is #FFFFFF at 17.50:1 contrast (WCAG AA passes).

Color values

HEX	#21103A
RGB	rgb(33, 16, 58)
HSL	hsl(264, 57%, 15%)
HSV	hsv(264, 72%, 23%)
CMYK	cmyk(43.1%, 72.4%, 0%, 77.3%)
CIE-LAB	lab(8.99, 19.80, -24.02)
CIE-LCH	lch(8.99, 31.13, 309.50°)
OKLab	oklab(22.39% 0.0372 -0.0683)
OKLCH	oklch(22.39% 0.078 298.5)
XYZ	xyz(1.5760, 0.9994, 4.1120)
Luminance	0.0100 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21103A #293A10

analogous

#10143A #21103A #36103A

triadic

#21103A #3A2110 #103A21

tetradic

#21103A #3A1014 #293A10 #103A36

square

#21103A #3A1014 #293A10 #103A36

split-complementary

#21103A #3A3610 #143A10

monochromatic

#0E0718 #0E0718 #21103A #3C1D6A #582A9A

Accessibility & contrast

On white

17.50

#21103A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#21103A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21103A

17.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21103A	#FFFFFF	#000000	##FFFFFF
##21103A	1.00	17.50	1.20	17.50
#FFFFFF	17.50	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00193B

Deuteranopia (green-blind)

#011939

Tritanopia (blue-blind)

#1B1923

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #21103a;
/* rgb */ color: rgb(33, 16, 58);
/* oklch */ color: oklch(22.4% 0.078 298.5);

Tailwind

colors: {
  custom: {
    50: '#5f4f70',
    500: '#21103a',
    950: '#000000',
  },
}

SCSS

$custom: #21103a;
$custom-light: #5f4f70;
$custom-dark: #000000;

JSON

{
  "hex": "#21103a",
  "rgb": {
    "r": 33,
    "g": 16,
    "b": 58
  },
  "hsl": {
    "h": 264.286,
    "s": 56.757,
    "l": 14.51
  },
  "oklch": {
    "l": 0.22392,
    "c": 0.07778,
    "h": 298.5
  },
  "luminance": 0.00999
}

Semantic roles & 50–950 ramp

primary

#21103A

secondary

#597432

accent

#E048A2

background

#F5F4F6

surface

#E9E7EC

border

#C5C3C7

text

#050207

muted

#79787A

Preview Lab

Preview with #21103A

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

Preview Lab → · Contrast checker → · Palette generator →