#21188A#21188A

#21188A is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.3% C 0.175 H 273.9°. Best body text is #FFFFFF at 13.44:1 contrast (WCAG AA passes).

Color values

HEX	#21188A
RGB	rgb(33, 24, 138)
HSL	hsl(245, 70%, 32%)
HSV	hsv(245, 83%, 54%)
CMYK	cmyk(76.1%, 82.6%, 0%, 45.9%)
CIE-LAB	lab(19.27, 41.83, -60.49)
CIE-LCH	lch(19.27, 73.54, 304.67°)
OKLab	oklab(32.25% 0.0118 -0.175)
OKLCH	oklch(32.25% 0.175 273.9)
XYZ	xyz(5.5398, 2.8110, 24.2905)
Luminance	0.0281 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21188A #818A18

analogous

#18488A #21188A #5A188A

triadic

#21188A #8A2118 #188A21

tetradic

#21188A #8A1848 #818A18 #188A5A

square

#21188A #8A1848 #818A18 #188A5A

split-complementary

#21188A #8A5A18 #488A18

monochromatic

#080622 #150F56 #21188A #2D21BE #4B3FDE

Accessibility & contrast

On white

13.44

#21188A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#21188A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21188A

13.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21188A	#FFFFFF	#000000	##FFFFFF
##21188A	1.00	13.44	1.56	13.44
#FFFFFF	13.44	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00348D

Deuteranopia (green-blind)

#002988

Tritanopia (blue-blind)

#003C52

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #21188a;
/* rgb */ color: rgb(33, 24, 138);
/* oklch */ color: oklch(32.3% 0.175 273.9);

Tailwind

colors: {
  custom: {
    50: '#7058ad',
    500: '#21188a',
    950: '#000000',
  },
}

SCSS

$custom: #21188a;
$custom-light: #7058ad;
$custom-dark: #000000;

JSON

{
  "hex": "#21188a",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 138
  },
  "hsl": {
    "h": 244.737,
    "s": 70.37,
    "l": 31.765
  },
  "oklch": {
    "l": 0.3225,
    "c": 0.17536,
    "h": 273.9
  },
  "luminance": 0.02812
}

Semantic roles & 50–950 ramp

primary

#21188A

secondary

#B4BD40

accent

#ED3BDF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #21188A

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

Preview Lab → · Contrast checker → · Palette generator →