#21319A#21319A

#21319A is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.8% C 0.170 H 269.2°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#21319A
RGB	rgb(33, 49, 154)
HSL	hsl(232, 65%, 37%)
HSV	hsv(232, 79%, 60%)
CMYK	cmyk(78.6%, 68.2%, 0%, 39.6%)
CIE-LAB	lab(26.31, 32.63, -58.77)
CIE-LCH	lch(26.31, 67.22, 299.04°)
OKLab	oklab(37.78% -0.0023 -0.1701)
OKLCH	oklch(37.78% 0.17 269.2)
XYZ	xyz(7.5562, 4.8522, 31.1039)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21319A #9A8A21

analogous

#216E9A #21319A #4E219A

triadic

#21319A #9A2131 #319A21

tetradic

#21319A #9A216E #9A8A21 #219A4E

square

#21319A #9A216E #9A8A21 #219A4E

split-complementary

#21319A #9A4E21 #6E9A21

monochromatic

#0B1135 #162168 #21319A #2C41CC #5A6BDC

Accessibility & contrast

On white

10.66

#21319A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#21319A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21319A

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21319A	#FFFFFF	#000000	##FFFFFF
##21319A	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449D

Deuteranopia (green-blind)

#003998

Tritanopia (blue-blind)

#004D61

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #21319a;
/* rgb */ color: rgb(33, 49, 154);
/* oklch */ color: oklch(37.8% 0.170 269.2);

Tailwind

colors: {
  custom: {
    50: '#7169b9',
    500: '#21319a',
    950: '#000000',
  },
}

SCSS

$custom: #21319a;
$custom-light: #7169b9;
$custom-dark: #000000;

JSON

{
  "hex": "#21319a",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 154
  },
  "hsl": {
    "h": 232.066,
    "s": 64.706,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37782,
    "c": 0.17014,
    "h": 269.2
  },
  "luminance": 0.04853
}

Semantic roles & 50–950 ramp

primary

#21319A

secondary

#C0B257

accent

#D240E8

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #21319A

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

Preview Lab → · Contrast checker → · Palette generator →