#21579D#21579D

#21579D is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.0% C 0.127 H 256.4°. Best body text is #FFFFFF at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#21579D
RGB	rgb(33, 87, 157)
HSL	hsl(214, 65%, 37%)
HSV	hsv(214, 79%, 62%)
CMYK	cmyk(79%, 44.6%, 0%, 38.4%)
CIE-LAB	lab(37.06, 8.25, -43.13)
CIE-LCH	lch(37.06, 43.91, 280.83°)
OKLab	oklab(45.97% -0.0298 -0.1236)
OKLCH	oklch(45.97% 0.127 256.4)
XYZ	xyz(10.1189, 9.5729, 33.2062)
Luminance	0.0957 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21579D #9D6721

analogous

#21959D #21579D #29219D

triadic

#21579D #9D2157 #579D21

tetradic

#21579D #9D2195 #9D6721 #219D29

square

#21579D #9D2195 #9D6721 #219D29

split-complementary

#21579D #9D2921 #959D21

monochromatic

#0C1F38 #163B6A #21579D #2C73D0 #5C94DD

Accessibility & contrast

On white

7.20

#21579D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.91

#21579D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21579D

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21579D	#FFFFFF	#000000	##FFFFFF
##21579D	1.00	7.20	2.91	7.20
#FFFFFF	7.20	1.00	21.00	1.00
#000000	2.91	21.00	1.00	21.00
##FFFFFF	7.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335DA0

Deuteranopia (green-blind)

#1B529C

Tritanopia (blue-blind)

#006872

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #21579d;
/* rgb */ color: rgb(33, 87, 157);
/* oklch */ color: oklch(46.0% 0.127 256.4);

Tailwind

colors: {
  custom: {
    50: '#7085ba',
    500: '#21579d',
    950: '#000000',
  },
}

SCSS

$custom: #21579d;
$custom-light: #7085ba;
$custom-dark: #000000;

JSON

{
  "hex": "#21579d",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 157
  },
  "hsl": {
    "h": 213.871,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.45969,
    "c": 0.12712,
    "h": 256.4
  },
  "luminance": 0.09574
}

Semantic roles & 50–950 ramp

primary

#21579D

secondary

#C19459

accent

#9F40E8

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #21579D

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

Preview Lab → · Contrast checker → · Palette generator →