#21137B#21137B

#21137B is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.9% C 0.161 H 276.4°. Best body text is #FFFFFF at 14.54:1 contrast (WCAG AA passes).

Color values

HEX	#21137B
RGB	rgb(33, 19, 123)
HSL	hsl(248, 73%, 28%)
HSV	hsv(248, 85%, 48%)
CMYK	cmyk(73.2%, 84.6%, 0%, 51.8%)
CIE-LAB	lab(16.60, 39.50, -55.42)
CIE-LCH	lch(16.60, 68.06, 305.47°)
OKLab	oklab(29.87% 0.018 -0.1602)
OKLCH	oklch(29.87% 0.161 276.4)
XYZ	xyz(4.4341, 2.2187, 18.9296)
Luminance	0.0222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21137B #6D7B13

analogous

#13397B #21137B #55137B

triadic

#21137B #7B2113 #137B21

tetradic

#21137B #7B1339 #6D7B13 #137B55

square

#21137B #7B1339 #6D7B13 #137B55

split-complementary

#21137B #7B5513 #397B13

monochromatic

#07041B #130B46 #21137B #2F1BB0 #422ADE

Accessibility & contrast

On white

14.54

#21137B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#21137B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21137B

14.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21137B	#FFFFFF	#000000	##FFFFFF
##21137B	1.00	14.54	1.44	14.54
#FFFFFF	14.54	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7E

Deuteranopia (green-blind)

#002479

Tritanopia (blue-blind)

#003448

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #21137b;
/* rgb */ color: rgb(33, 19, 123);
/* oklch */ color: oklch(29.9% 0.161 276.4);

Tailwind

colors: {
  custom: {
    50: '#6c55a2',
    500: '#21137b',
    950: '#000000',
  },
}

SCSS

$custom: #21137b;
$custom-light: #6c55a2;
$custom-dark: #000000;

JSON

{
  "hex": "#21137b",
  "rgb": {
    "r": 33,
    "g": 19,
    "b": 123
  },
  "hsl": {
    "h": 248.077,
    "s": 73.239,
    "l": 27.843
  },
  "oklch": {
    "l": 0.29865,
    "c": 0.16119,
    "h": 276.4
  },
  "luminance": 0.02219
}

Semantic roles & 50–950 ramp

primary

#21137B

secondary

#A1B139

accent

#F038D7

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08030F

muted

#7B787F

Preview Lab

Preview with #21137B

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

Preview Lab → · Contrast checker → · Palette generator →