#21156B#21156B

#21156B is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.2% C 0.139 H 279.0°. Best body text is #FFFFFF at 15.17:1 contrast (WCAG AA passes).

Color values

HEX	#21156B
RGB	rgb(33, 21, 107)
HSL	hsl(248, 67%, 25%)
HSV	hsv(248, 80%, 42%)
CMYK	cmyk(69.2%, 80.4%, 0%, 58%)
CIE-LAB	lab(15.07, 33.20, -47.60)
CIE-LCH	lch(15.07, 58.04, 304.90°)
OKLab	oklab(28.24% 0.0217 -0.1374)
OKLCH	oklch(28.24% 0.139 279)
XYZ	xyz(3.5484, 1.9209, 14.0908)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21156B #5F6B15

analogous

#15346B #21156B #4C156B

triadic

#21156B #6B2115 #156B21

tetradic

#21156B #6B1534 #5F6B15 #156B4C

square

#21156B #6B1534 #5F6B15 #156B4C

split-complementary

#21156B #6B4C15 #346B15

monochromatic

#08051A #110B38 #21156B #311F9E #4129D1

Accessibility & contrast

On white

15.17

#21156B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#21156B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21156B

15.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21156B	#FFFFFF	#000000	##FFFFFF
##21156B	1.00	15.17	1.38	15.17
#FFFFFF	15.17	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296D

Deuteranopia (green-blind)

#002269

Tritanopia (blue-blind)

#002E3F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #21156b;
/* rgb */ color: rgb(33, 21, 107);
/* oklch */ color: oklch(28.2% 0.139 279.0);

Tailwind

colors: {
  custom: {
    50: '#685496',
    500: '#21156b',
    950: '#000000',
  },
}

SCSS

$custom: #21156b;
$custom-light: #685496;
$custom-dark: #000000;

JSON

{
  "hex": "#21156b",
  "rgb": {
    "r": 33,
    "g": 21,
    "b": 107
  },
  "hsl": {
    "h": 248.372,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.28243,
    "c": 0.13915,
    "h": 279
  },
  "luminance": 0.01921
}

Semantic roles & 50–950 ramp

primary

#21156B

secondary

#93A23A

accent

#EA3ED2

background

#F6F5F9

surface

#EBE8F2

border

#C6C4CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #21156B

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

Preview Lab → · Contrast checker → · Palette generator →