#21156C#21156C

#21156C is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.4% C 0.140 H 278.8°. Best body text is #FFFFFF at 15.13:1 contrast (WCAG AA passes).

Color values

HEX	#21156C
RGB	rgb(33, 21, 108)
HSL	hsl(248, 67%, 25%)
HSV	hsv(248, 81%, 42%)
CMYK	cmyk(69.4%, 80.6%, 0%, 57.6%)
CIE-LAB	lab(15.18, 33.54, -48.07)
CIE-LCH	lch(15.18, 58.61, 304.90°)
OKLab	oklab(28.36% 0.0214 -0.1388)
OKLCH	oklch(28.36% 0.14 278.8)
XYZ	xyz(3.6013, 1.9421, 14.3695)
Luminance	0.0194 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21156C #606C15

analogous

#15346C #21156C #4C156C

triadic

#21156C #6C2115 #156C21

tetradic

#21156C #6C1534 #606C15 #156C4C

square

#21156C #6C1534 #606C15 #156C4C

split-complementary

#21156C #6C4C15 #346C15

monochromatic

#08051A #110B39 #21156C #311F9F #4029D2

Accessibility & contrast

On white

15.13

#21156C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#21156C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21156C

15.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21156C	#FFFFFF	#000000	##FFFFFF
##21156C	1.00	15.13	1.39	15.13
#FFFFFF	15.13	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296E

Deuteranopia (green-blind)

#00236A

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #21156c;
/* rgb */ color: rgb(33, 21, 108);
/* oklch */ color: oklch(28.4% 0.140 278.8);

Tailwind

colors: {
  custom: {
    50: '#685597',
    500: '#21156c',
    950: '#000000',
  },
}

SCSS

$custom: #21156c;
$custom-light: #685597;
$custom-dark: #000000;

JSON

{
  "hex": "#21156c",
  "rgb": {
    "r": 33,
    "g": 21,
    "b": 108
  },
  "hsl": {
    "h": 248.276,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28357,
    "c": 0.14045,
    "h": 278.8
  },
  "luminance": 0.01942
}

Semantic roles & 50–950 ramp

primary

#21156C

secondary

#94A33A

accent

#EA3DD2

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #21156C

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

Preview Lab → · Contrast checker → · Palette generator →