#21549E#21549E

#21549E is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.4% C 0.132 H 258.2°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#21549E
RGB	rgb(33, 84, 158)
HSL	hsl(216, 65%, 37%)
HSV	hsv(216, 79%, 62%)
CMYK	cmyk(79.1%, 46.8%, 0%, 38%)
CIE-LAB	lab(36.24, 10.63, -45.06)
CIE-LCH	lch(36.24, 46.30, 283.27°)
OKLab	oklab(45.35% -0.027 -0.1293)
OKLCH	oklch(45.35% 0.132 258.2)
XYZ	xyz(9.9668, 9.1314, 33.5784)
Luminance	0.0913 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21549E #9E6B21

analogous

#21939E #21549E #2D219E

triadic

#21549E #9E2154 #549E21

tetradic

#21549E #9E2193 #9E6B21 #219E2D

square

#21549E #9E2193 #9E6B21 #219E2D

split-complementary

#21549E #9E2D21 #939E21

monochromatic

#0C1E39 #16396B #21549E #2C6FD1 #5C91DD

Accessibility & contrast

On white

7.43

#21549E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#21549E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21549E

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21549E	#FFFFFF	#000000	##FFFFFF
##21549E	1.00	7.43	2.83	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5BA1

Deuteranopia (green-blind)

#0D509D

Tritanopia (blue-blind)

#006671

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #21549e;
/* rgb */ color: rgb(33, 84, 158);
/* oklch */ color: oklch(45.4% 0.132 258.2);

Tailwind

colors: {
  custom: {
    50: '#7083bb',
    500: '#21549e',
    950: '#000000',
  },
}

SCSS

$custom: #21549e;
$custom-light: #7083bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21549e",
  "rgb": {
    "r": 33,
    "g": 84,
    "b": 158
  },
  "hsl": {
    "h": 215.52,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.4535,
    "c": 0.13212,
    "h": 258.2
  },
  "luminance": 0.09133
}

Semantic roles & 50–950 ramp

primary

#21549E

secondary

#C19759

accent

#A33FE8

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #21549E

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

Preview Lab → · Contrast checker → · Palette generator →