#21499D#21499D

#21499D is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.8% C 0.144 H 262.7°. Best body text is #FFFFFF at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#21499D
RGB	rgb(33, 73, 157)
HSL	hsl(221, 65%, 37%)
HSV	hsv(221, 79%, 62%)
CMYK	cmyk(79%, 53.5%, 0%, 38.4%)
CIE-LAB	lab(32.97, 17.62, -49.73)
CIE-LCH	lch(32.97, 52.76, 289.51°)
OKLab	oklab(42.82% -0.0183 -0.1433)
OKLCH	oklch(42.82% 0.144 262.7)
XYZ	xyz(9.0934, 7.5217, 32.8643)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21499D #9D7521

analogous

#21879D #21499D #37219D

triadic

#21499D #9D2149 #499D21

tetradic

#21499D #9D2187 #9D7521 #219D37

square

#21499D #9D2187 #9D7521 #219D37

split-complementary

#21499D #9D3721 #879D21

monochromatic

#0C1A38 #16316A #21499D #2C61D0 #5C85DD

Accessibility & contrast

On white

8.38

#21499D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#21499D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21499D

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21499D	#FFFFFF	#000000	##FFFFFF
##21499D	1.00	8.38	2.50	8.38
#FFFFFF	8.38	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B54A0

Deuteranopia (green-blind)

#00489B

Tritanopia (blue-blind)

#005D6C

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #21499d;
/* rgb */ color: rgb(33, 73, 157);
/* oklch */ color: oklch(42.8% 0.144 262.7);

Tailwind

colors: {
  custom: {
    50: '#707bbb',
    500: '#21499d',
    950: '#000000',
  },
}

SCSS

$custom: #21499d;
$custom-light: #707bbb;
$custom-dark: #000000;

JSON

{
  "hex": "#21499d",
  "rgb": {
    "r": 33,
    "g": 73,
    "b": 157
  },
  "hsl": {
    "h": 220.645,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.42823,
    "c": 0.14445,
    "h": 262.7
  },
  "luminance": 0.07523
}

Semantic roles & 50–950 ramp

primary

#21499D

secondary

#C19F59

accent

#B240E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #21499D

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

Preview Lab → · Contrast checker → · Palette generator →