#21318C#21318C

#21318C is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.4% C 0.151 H 269.4°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#21318C
RGB	rgb(33, 49, 140)
HSL	hsl(231, 62%, 34%)
HSV	hsv(231, 76%, 55%)
CMYK	cmyk(76.4%, 65%, 0%, 45.1%)
CIE-LAB	lab(24.99, 27.34, -52.31)
CIE-LCH	lch(24.99, 59.02, 297.59°)
OKLab	oklab(36.41% -0.0015 -0.1512)
OKLCH	oklch(36.41% 0.151 269.4)
XYZ	xyz(6.4575, 4.4127, 25.3173)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21318C #8C7C21

analogous

#21678C #21318C #47218C

triadic

#21318C #8C2131 #318C21

tetradic

#21318C #8C2167 #8C7C21 #218C47

square

#21318C #8C2167 #8C7C21 #218C47

split-complementary

#21318C #8C4721 #678C21

monochromatic

#0A0E29 #15205A #21318C #2D42BE #5165D6

Accessibility & contrast

On white

11.15

#21318C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#21318C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21318C

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21318C	#FFFFFF	#000000	##FFFFFF
##21318C	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408F

Deuteranopia (green-blind)

#00368A

Tritanopia (blue-blind)

#004959

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #21318c;
/* rgb */ color: rgb(33, 49, 140);
/* oklch */ color: oklch(36.4% 0.151 269.4);

Tailwind

colors: {
  custom: {
    50: '#6e69ae',
    500: '#21318c',
    950: '#000000',
  },
}

SCSS

$custom: #21318c;
$custom-light: #6e69ae;
$custom-dark: #000000;

JSON

{
  "hex": "#21318c",
  "rgb": {
    "r": 33,
    "g": 49,
    "b": 140
  },
  "hsl": {
    "h": 231.028,
    "s": 61.85,
    "l": 33.922
  },
  "oklch": {
    "l": 0.36414,
    "c": 0.15122,
    "h": 269.4
  },
  "luminance": 0.04413
}

Semantic roles & 50–950 ramp

primary

#21318C

secondary

#B9AA4F

accent

#CD43E5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #21318C

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

Preview Lab → · Contrast checker → · Palette generator →