#21108D#21108D

#21108D is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.8% C 0.185 H 274.1°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#21108D
RGB	rgb(33, 16, 141)
HSL	hsl(248, 80%, 31%)
HSV	hsv(248, 89%, 55%)
CMYK	cmyk(76.6%, 88.7%, 0%, 44.7%)
CIE-LAB	lab(18.44, 46.34, -63.75)
CIE-LCH	lch(18.44, 78.81, 306.01°)
OKLab	oklab(31.79% 0.0133 -0.1842)
OKLCH	oklch(31.79% 0.185 274.1)
XYZ	xyz(5.6186, 2.6164, 25.4030)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21108D #7C8D10

analogous

#103D8D #21108D #5F108D

triadic

#21108D #8D2110 #108D21

tetradic

#21108D #8D103D #7C8D10 #108D5F

square

#21108D #8D103D #7C8D10 #108D5F

split-complementary

#21108D #8D5F10 #3D8D10

monochromatic

#07041F #140A56 #21108D #2E16C4 #4930E7

Accessibility & contrast

On white

13.78

#21108D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#21108D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21108D

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21108D	#FFFFFF	#000000	##FFFFFF
##21108D	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003290

Deuteranopia (green-blind)

#00278B

Tritanopia (blue-blind)

#003A52

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #21108d;
/* rgb */ color: rgb(33, 16, 141);
/* oklch */ color: oklch(31.8% 0.185 274.1);

Tailwind

colors: {
  custom: {
    50: '#7155b0',
    500: '#21108d',
    950: '#000000',
  },
}

SCSS

$custom: #21108d;
$custom-light: #7155b0;
$custom-dark: #000000;

JSON

{
  "hex": "#21108d",
  "rgb": {
    "r": 33,
    "g": 16,
    "b": 141
  },
  "hsl": {
    "h": 248.16,
    "s": 79.618,
    "l": 30.784
  },
  "oklch": {
    "l": 0.31785,
    "c": 0.18473,
    "h": 274.1
  },
  "luminance": 0.02617
}

Semantic roles & 50–950 ramp

primary

#21108D

secondary

#AFC237

accent

#F632DB

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #21108D

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

Preview Lab → · Contrast checker → · Palette generator →