#21188F#21188F

#21188F is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.8% C 0.181 H 273.3°. Best body text is #FFFFFF at 13.19:1 contrast (WCAG AA passes).

Color values

HEX	#21188F
RGB	rgb(33, 24, 143)
HSL	hsl(245, 71%, 33%)
HSV	hsv(245, 83%, 56%)
CMYK	cmyk(76.9%, 83.2%, 0%, 43.9%)
CIE-LAB	lab(19.88, 43.43, -62.60)
CIE-LCH	lch(19.88, 76.19, 304.75°)
OKLab	oklab(32.85% 0.0105 -0.1811)
OKLCH	oklch(32.85% 0.181 273.3)
XYZ	xyz(5.9101, 2.9592, 26.2410)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21188F #868F18

analogous

#184A8F #21188F #5D188F

triadic

#21188F #8F2118 #188F21

tetradic

#21188F #8F184A #868F18 #188F5D

square

#21188F #8F184A #868F18 #188F5D

split-complementary

#21188F #8F5D18 #4A8F18

monochromatic

#090626 #150F5B #21188F #2D21C3 #4E42DF

Accessibility & contrast

On white

13.19

#21188F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#21188F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21188F

13.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21188F	#FFFFFF	#000000	##FFFFFF
##21188F	1.00	13.19	1.59	13.19
#FFFFFF	13.19	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003592

Deuteranopia (green-blind)

#002A8D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #21188f;
/* rgb */ color: rgb(33, 24, 143);
/* oklch */ color: oklch(32.8% 0.181 273.3);

Tailwind

colors: {
  custom: {
    50: '#7159b1',
    500: '#21188f',
    950: '#000000',
  },
}

SCSS

$custom: #21188f;
$custom-light: #7159b1;
$custom-dark: #000000;

JSON

{
  "hex": "#21188f",
  "rgb": {
    "r": 33,
    "g": 24,
    "b": 143
  },
  "hsl": {
    "h": 244.538,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32849,
    "c": 0.18139,
    "h": 273.3
  },
  "luminance": 0.0296
}

Semantic roles & 50–950 ramp

primary

#21188F

secondary

#B7C043

accent

#EE3AE0

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #21188F

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

Preview Lab → · Contrast checker → · Palette generator →