#21579E#21579E

#21579E is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.0% C 0.129 H 256.7°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#21579E
RGB	rgb(33, 87, 158)
HSL	hsl(214, 65%, 37%)
HSV	hsv(214, 79%, 62%)
CMYK	cmyk(79.1%, 44.9%, 0%, 38%)
CIE-LAB	lab(37.13, 8.64, -43.63)
CIE-LCH	lch(37.13, 44.48, 281.21°)
OKLab	oklab(46.04% -0.0296 -0.125)
OKLCH	oklch(46.04% 0.129 256.7)
XYZ	xyz(10.2047, 9.6071, 33.6577)
Luminance	0.0961 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21579E #9E6821

analogous

#21969E #21579E #2A219E

triadic

#21579E #9E2157 #579E21

tetradic

#21579E #9E2196 #9E6821 #219E2A

square

#21579E #9E2196 #9E6821 #219E2A

split-complementary

#21579E #9E2A21 #969E21

monochromatic

#0C1F39 #163B6B #21579E #2C73D1 #5C94DD

Accessibility & contrast

On white

7.19

#21579E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#21579E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21579E

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21579E	#FFFFFF	#000000	##FFFFFF
##21579E	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335DA1

Deuteranopia (green-blind)

#19529D

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #21579e;
/* rgb */ color: rgb(33, 87, 158);
/* oklch */ color: oklch(46.0% 0.129 256.7);

Tailwind

colors: {
  custom: {
    50: '#7085bb',
    500: '#21579e',
    950: '#000000',
  },
}

SCSS

$custom: #21579e;
$custom-light: #7085bb;
$custom-dark: #000000;

JSON

{
  "hex": "#21579e",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 158
  },
  "hsl": {
    "h": 214.08,
    "s": 65.445,
    "l": 37.451
  },
  "oklch": {
    "l": 0.46039,
    "c": 0.1285,
    "h": 256.7
  },
  "luminance": 0.09608
}

Semantic roles & 50–950 ramp

primary

#21579E

secondary

#C19459

accent

#9F3FE8

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #21579E

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

Preview Lab → · Contrast checker → · Palette generator →