#21157B#21157B

#21157B is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.160 H 276.2°. Best body text is #FFFFFF at 14.40:1 contrast (WCAG AA passes).

Color values

HEX	#21157B
RGB	rgb(33, 21, 123)
HSL	hsl(247, 71%, 28%)
HSV	hsv(247, 83%, 48%)
CMYK	cmyk(73.2%, 82.9%, 0%, 51.8%)
CIE-LAB	lab(16.94, 38.50, -54.86)
CIE-LCH	lch(16.94, 67.02, 305.06°)
OKLab	oklab(30.1% 0.0172 -0.1586)
OKLCH	oklch(30.1% 0.16 276.2)
XYZ	xyz(4.4693, 2.2893, 18.9414)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21157B #6F7B15

analogous

#153C7B #21157B #54157B

triadic

#21157B #7B2115 #157B21

tetradic

#21157B #7B153C #6F7B15 #157B54

square

#21157B #7B153C #6F7B15 #157B54

split-complementary

#21157B #7B5415 #3C7B15

monochromatic

#07041A #130C47 #21157B #2F1EAF #432FDB

Accessibility & contrast

On white

14.40

#21157B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#21157B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21157B

14.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21157B	#FFFFFF	#000000	##FFFFFF
##21157B	1.00	14.40	1.46	14.40
#FFFFFF	14.40	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7E

Deuteranopia (green-blind)

#002579

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #21157b;
/* rgb */ color: rgb(33, 21, 123);
/* oklch */ color: oklch(30.1% 0.160 276.2);

Tailwind

colors: {
  custom: {
    50: '#6c56a2',
    500: '#21157b',
    950: '#000000',
  },
}

SCSS

$custom: #21157b;
$custom-light: #6c56a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21157b",
  "rgb": {
    "r": 33,
    "g": 21,
    "b": 123
  },
  "hsl": {
    "h": 247.059,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.30102,
    "c": 0.1595,
    "h": 276.2
  },
  "luminance": 0.0229
}

Semantic roles & 50–950 ramp

primary

#21157B

secondary

#A3B03B

accent

#EE3AD8

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21157B

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

Preview Lab → · Contrast checker → · Palette generator →