#21188C#21188C

#21188C is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.178 H 273.6°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#21188C
RGB	rgb(33, 24, 140)
HSL	hsl(245, 71%, 32%)
HSV	hsv(245, 83%, 55%)
CMYK	cmyk(76.4%, 82.9%, 0%, 45.1%)
CIE-LAB	lab(19.51, 42.47, -61.34)
CIE-LCH	lch(19.51, 74.61, 304.70°)
OKLab	oklab(32.49% 0.0113 -0.1774)
OKLCH	oklch(32.49% 0.178 273.6)
XYZ	xyz(5.6859, 2.8695, 25.0601)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21188C #838C18

analogous

#18498C #21188C #5B188C

triadic

#21188C #8C2118 #188C21

tetradic

#21188C #8C1849 #838C18 #188C5B

square

#21188C #8C1849 #838C18 #188C5B

split-complementary

#21188C #8C5B18 #498C18

monochromatic

#080624 #150F58 #21188C #2D21C0 #4C40DE

Accessibility & contrast

On white

13.34

#21188C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#21188C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21188C

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21188C	#FFFFFF	#000000	##FFFFFF
##21188C	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348F

Deuteranopia (green-blind)

#002A8A

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #21188c;
/* rgb */ color: rgb(33, 24, 140);
/* oklch */ color: oklch(32.5% 0.178 273.6);

Tailwind

colors: {
  custom: {
    50: '#7058af',
    500: '#21188c',
    950: '#000000',
  },
}

SCSS

$custom: #21188c;
$custom-light: #7058af;
$custom-dark: #000000;

JSON

{
  "hex": "#21188c",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 140
  },
  "hsl": {
    "h": 244.655,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32489,
    "c": 0.17778,
    "h": 273.6
  },
  "luminance": 0.0287
}

Semantic roles & 50–950 ramp

primary

#21188C

secondary

#B5BF41

accent

#ED3AE0

background

#F7F5FA

surface

#EDE9F5

border

#C8C5CF

text

#090411

muted

#7B7980

Preview Lab

Preview with #21188C

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

Preview Lab → · Contrast checker → · Palette generator →