#21579F#21579F

#21579F is a mid, vivid cyan. Relative luminance 0.096; OKLCH L 46.1% C 0.130 H 256.9°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#21579F
RGB	rgb(33, 87, 159)
HSL	hsl(214, 66%, 38%)
HSV	hsv(214, 79%, 62%)
CMYK	cmyk(79.2%, 45.3%, 0%, 37.6%)
CIE-LAB	lab(37.19, 9.04, -44.13)
CIE-LCH	lch(37.19, 45.04, 281.57°)
OKLab	oklab(46.11% -0.0294 -0.1265)
OKLCH	oklch(46.11% 0.13 256.9)
XYZ	xyz(10.2911, 9.6417, 34.1128)
Luminance	0.0964 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21579F #9F6921

analogous

#21969F #21579F #2A219F

triadic

#21579F #9F2157 #579F21

tetradic

#21579F #9F2196 #9F6921 #219F2A

square

#21579F #9F2196 #9F6921 #219F2A

split-complementary

#21579F #9F2A21 #969F21

monochromatic

#0C203A #163B6C #21579F #2C73D2 #5D94DD

Accessibility & contrast

On white

7.17

#21579F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#21579F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21579F

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21579F	#FFFFFF	#000000	##FFFFFF
##21579F	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325EA2

Deuteranopia (green-blind)

#17529E

Tritanopia (blue-blind)

#006873

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #21579f;
/* rgb */ color: rgb(33, 87, 159);
/* oklch */ color: oklch(46.1% 0.130 256.9);

Tailwind

colors: {
  custom: {
    50: '#7085bc',
    500: '#21579f',
    950: '#000000',
  },
}

SCSS

$custom: #21579f;
$custom-light: #7085bc;
$custom-dark: #000000;

JSON

{
  "hex": "#21579f",
  "rgb": {
    "r": 33,
    "g": 87,
    "b": 159
  },
  "hsl": {
    "h": 214.286,
    "s": 65.625,
    "l": 37.647
  },
  "oklch": {
    "l": 0.46109,
    "c": 0.12988,
    "h": 256.9
  },
  "luminance": 0.09643
}

Semantic roles & 50–950 ramp

primary

#21579F

secondary

#C2955A

accent

#A03FE9

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #21579F

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

Preview Lab → · Contrast checker → · Palette generator →