#21318D#21318D

#21318D is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.5% C 0.153 H 269.4°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#21318D
RGB	rgb(33, 49, 141)
HSL	hsl(231, 62%, 34%)
HSV	hsv(231, 77%, 55%)
CMYK	cmyk(76.6%, 65.2%, 0%, 44.7%)
CIE-LAB	lab(25.08, 27.72, -52.78)
CIE-LCH	lch(25.08, 59.62, 297.71°)
OKLab	oklab(36.51% -0.0016 -0.1526)
OKLCH	oklch(36.51% 0.153 269.4)
XYZ	xyz(6.5316, 4.4423, 25.7074)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21318D #8D7D21

analogous

#21678D #21318D #47218D

triadic

#21318D #8D2131 #318D21

tetradic

#21318D #8D2167 #8D7D21 #218D47

square

#21318D #8D2167 #8D7D21 #218D47

split-complementary

#21318D #8D4721 #678D21

monochromatic

#0A0F2A #15205B #21318D #2D42BF #5266D6

Accessibility & contrast

On white

11.12

#21318D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#21318D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21318D

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21318D	#FFFFFF	#000000	##FFFFFF
##21318D	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004190

Deuteranopia (green-blind)

#00368B

Tritanopia (blue-blind)

#00495A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #21318d;
/* rgb */ color: rgb(33, 49, 141);
/* oklch */ color: oklch(36.5% 0.153 269.4);

Tailwind

colors: {
  custom: {
    50: '#6e69af',
    500: '#21318d',
    950: '#000000',
  },
}

SCSS

$custom: #21318d;
$custom-light: #6e69af;
$custom-dark: #000000;

JSON

{
  "hex": "#21318d",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 141
  },
  "hsl": {
    "h": 231.111,
    "s": 62.069,
    "l": 34.118
  },
  "oklch": {
    "l": 0.36509,
    "c": 0.1526,
    "h": 269.4
  },
  "luminance": 0.04443
}

Semantic roles & 50–950 ramp

primary

#21318D

secondary

#BAAA50

accent

#CD43E5

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #21318D

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

Preview Lab → · Contrast checker → · Palette generator →