#579CCC#579CCC

#579CCC is a light, moderate cyan. Relative luminance 0.302; OKLCH L 66.7% C 0.100 H 240.8°. Best body text is #000000 at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#579CCC
RGB	rgb(87, 156, 204)
HSL	hsl(205, 53%, 57%)
HSV	hsv(205, 57%, 80%)
CMYK	cmyk(57.4%, 23.5%, 0%, 20%)
CIE-LAB	lab(61.79, -7.79, -31.22)
CIE-LCH	lch(61.79, 32.18, 255.99°)
OKLab	oklab(66.7% -0.0488 -0.0874)
OKLCH	oklch(66.7% 0.1 240.8)
XYZ	xyz(26.7140, 30.1604, 61.5288)
Luminance	0.3016 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579CCC #CC8757

analogous

#57CCC1 #579CCC #5762CC

triadic

#579CCC #CC579C #9CCC57

tetradic

#579CCC #C157CC #CC8757 #62CC57

square

#579CCC #C157CC #CC8757 #62CC57

split-complementary

#579CCC #CC5762 #CCC157

monochromatic

#275C81 #367EB0 #579CCC #86B8DA #B5D3E9

Accessibility & contrast

On white

2.99

#579CCC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.03

#579CCC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579CCC

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579CCC	#FFFFFF	#000000	##000000
##579CCC	1.00	2.99	7.03	7.03
#FFFFFF	2.99	1.00	21.00	21.00
#000000	7.03	21.00	1.00	1.00
##000000	7.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879CCE

Deuteranopia (green-blind)

#7790CB

Tritanopia (blue-blind)

#00A8AC

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #579ccc;
/* rgb */ color: rgb(87, 156, 204);
/* oklch */ color: oklch(66.7% 0.100 240.8);

Tailwind

colors: {
  custom: {
    50: '#8fb9db',
    500: '#579ccc',
    950: '#000000',
  },
}

SCSS

$custom: #579ccc;
$custom-light: #8fb9db;
$custom-dark: #000000;

JSON

{
  "hex": "#579ccc",
  "rgb": {
    "r": 87,
    "g": 156,
    "b": 204
  },
  "hsl": {
    "h": 204.615,
    "s": 53.425,
    "l": 57.059
  },
  "oklch": {
    "l": 0.66703,
    "c": 0.10012,
    "h": 240.8
  },
  "luminance": 0.30163
}

Semantic roles & 50–950 ramp

primary

#579CCC

secondary

#D7BBA8

accent

#874BDD

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #579CCC

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

Preview Lab → · Contrast checker → · Palette generator →