#21499B#21499B

#21499B is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.142 H 262.5°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#21499B
RGB	rgb(33, 73, 155)
HSL	hsl(220, 65%, 37%)
HSV	hsv(220, 79%, 61%)
CMYK	cmyk(78.7%, 52.9%, 0%, 39.2%)
CIE-LAB	lab(32.82, 16.83, -48.76)
CIE-LCH	lch(32.82, 51.58, 289.04°)
OKLab	oklab(42.66% -0.0185 -0.1404)
OKLCH	oklch(42.66% 0.142 262.5)
XYZ	xyz(8.9240, 7.4540, 31.9724)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21499B #9B7321

analogous

#21869B #21499B #36219B

triadic

#21499B #9B2149 #499B21

tetradic

#21499B #9B2186 #9B7321 #219B36

square

#21499B #9B2186 #9B7321 #219B36

split-complementary

#21499B #9B3621 #869B21

monochromatic

#0C1936 #163169 #21499B #2C61CD #5A85DC

Accessibility & contrast

On white

8.43

#21499B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#21499B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21499B

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21499B	#FFFFFF	#000000	##FFFFFF
##21499B	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10539E

Deuteranopia (green-blind)

#004899

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #21499b;
/* rgb */ color: rgb(33, 73, 155);
/* oklch */ color: oklch(42.7% 0.142 262.5);

Tailwind

colors: {
  custom: {
    50: '#707bb9',
    500: '#21499b',
    950: '#000000',
  },
}

SCSS

$custom: #21499b;
$custom-light: #707bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#21499b",
  "rgb": {
    "r": 33,
    "g": 73,
    "b": 155
  },
  "hsl": {
    "h": 220.328,
    "s": 64.894,
    "l": 36.863
  },
  "oklch": {
    "l": 0.42664,
    "c": 0.14164,
    "h": 262.5
  },
  "luminance": 0.07455
}

Semantic roles & 50–950 ramp

primary

#21499B

secondary

#C09E58

accent

#B140E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #21499B

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

Preview Lab → · Contrast checker → · Palette generator →