#21157E#21157E

#21157E is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.163 H 275.7°. Best body text is #FFFFFF at 14.25:1 contrast (WCAG AA passes).

Color values

HEX	#21157E
RGB	rgb(33, 21, 126)
HSL	hsl(247, 71%, 29%)
HSV	hsv(247, 83%, 49%)
CMYK	cmyk(73.8%, 83.3%, 0%, 50.6%)
CIE-LAB	lab(17.30, 39.47, -56.17)
CIE-LCH	lch(17.30, 68.65, 305.09°)
OKLab	oklab(30.46% 0.0163 -0.1624)
OKLCH	oklch(30.46% 0.163 275.7)
XYZ	xyz(4.6600, 2.3656, 19.9456)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21157E #727E15

analogous

#153E7E #21157E #56157E

triadic

#21157E #7E2115 #157E21

tetradic

#21157E #7E153E #727E15 #157E56

square

#21157E #7E153E #727E15 #157E56

split-complementary

#21157E #7E5615 #3E7E15

monochromatic

#07041A #130C4A #21157E #2F1EB2 #4431DD

Accessibility & contrast

On white

14.25

#21157E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#21157E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21157E

14.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21157E	#FFFFFF	#000000	##FFFFFF
##21157E	1.00	14.25	1.47	14.25
#FFFFFF	14.25	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F81

Deuteranopia (green-blind)

#00267C

Tritanopia (blue-blind)

#00364A

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #21157e;
/* rgb */ color: rgb(33, 21, 126);
/* oklch */ color: oklch(30.5% 0.163 275.7);

Tailwind

colors: {
  custom: {
    50: '#6d56a5',
    500: '#21157e',
    950: '#000000',
  },
}

SCSS

$custom: #21157e;
$custom-light: #6d56a5;
$custom-dark: #000000;

JSON

{
  "hex": "#21157e",
  "rgb": {
    "r": 33,
    "g": 21,
    "b": 126
  },
  "hsl": {
    "h": 246.857,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.30459,
    "c": 0.16321,
    "h": 275.7
  },
  "luminance": 0.02366
}

Semantic roles & 50–950 ramp

primary

#21157E

secondary

#A5B33C

accent

#EE3ADA

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21157E

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

Preview Lab → · Contrast checker → · Palette generator →