#21499C#21499C

#21499C is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.143 H 262.6°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#21499C
RGB	rgb(33, 73, 156)
HSL	hsl(220, 65%, 37%)
HSV	hsv(220, 79%, 61%)
CMYK	cmyk(78.8%, 53.2%, 0%, 38.8%)
CIE-LAB	lab(32.89, 17.22, -49.25)
CIE-LCH	lch(32.89, 52.17, 289.28°)
OKLab	oklab(42.74% -0.0184 -0.1419)
OKLCH	oklch(42.74% 0.143 262.6)
XYZ	xyz(9.0083, 7.4877, 32.4165)
Luminance	0.0749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21499C #9C7421

analogous

#21879C #21499C #37219C

triadic

#21499C #9C2149 #499C21

tetradic

#21499C #9C2187 #9C7421 #219C37

square

#21499C #9C2187 #9C7421 #219C37

split-complementary

#21499C #9C3721 #879C21

monochromatic

#0C1A37 #163169 #21499C #2C61CF #5B85DC

Accessibility & contrast

On white

8.41

#21499C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#21499C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21499C

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21499C	#FFFFFF	#000000	##FFFFFF
##21499C	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E539F

Deuteranopia (green-blind)

#00489A

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #21499c;
/* rgb */ color: rgb(33, 73, 156);
/* oklch */ color: oklch(42.7% 0.143 262.6);

Tailwind

colors: {
  custom: {
    50: '#707bba',
    500: '#21499c',
    950: '#000000',
  },
}

SCSS

$custom: #21499c;
$custom-light: #707bba;
$custom-dark: #000000;

JSON

{
  "hex": "#21499c",
  "rgb": {
    "r": 33,
    "g": 73,
    "b": 156
  },
  "hsl": {
    "h": 220.488,
    "s": 65.079,
    "l": 37.059
  },
  "oklch": {
    "l": 0.42744,
    "c": 0.14305,
    "h": 262.6
  },
  "luminance": 0.07489
}

Semantic roles & 50–950 ramp

primary

#21499C

secondary

#C19F58

accent

#B140E8

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #21499C

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

Preview Lab → · Contrast checker → · Palette generator →