#579DCB#579DCB

#579DCB is a light, moderate cyan. Relative luminance 0.305; OKLCH L 66.9% C 0.099 H 239.3°. Best body text is #000000 at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#579DCB
RGB	rgb(87, 157, 203)
HSL	hsl(204, 53%, 57%)
HSV	hsv(204, 57%, 80%)
CMYK	cmyk(57.1%, 22.7%, 0%, 20.4%)
CIE-LAB	lab(62.04, -8.66, -30.28)
CIE-LCH	lch(62.04, 31.50, 254.04°)
OKLab	oklab(66.89% -0.0502 -0.0847)
OKLCH	oklch(66.89% 0.099 239.3)
XYZ	xyz(26.7629, 30.4496, 60.9553)
Luminance	0.3045 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579DCB #CB8557

analogous

#57CBBF #579DCB #5763CB

triadic

#579DCB #CB579D #9DCB57

tetradic

#579DCB #BF57CB #CB8557 #63CB57

square

#579DCB #BF57CB #CB8557 #63CB57

split-complementary

#579DCB #CB5763 #CBBF57

monochromatic

#285D80 #367FAF #579DCB #86B8D9 #B4D4E8

Accessibility & contrast

On white

2.96

#579DCB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.09

#579DCB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579DCB

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579DCB	#FFFFFF	#000000	##000000
##579DCB	1.00	2.96	7.09	7.09
#FFFFFF	2.96	1.00	21.00	21.00
#000000	7.09	21.00	1.00	1.00
##000000	7.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#889DCD

Deuteranopia (green-blind)

#7891CA

Tritanopia (blue-blind)

#00A9AC

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #579dcb;
/* rgb */ color: rgb(87, 157, 203);
/* oklch */ color: oklch(66.9% 0.099 239.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#579dcb",
  "rgb": {
    "r": 87,
    "g": 157,
    "b": 203
  },
  "hsl": {
    "h": 203.793,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.66886,
    "c": 0.0985,
    "h": 239.3
  },
  "luminance": 0.30452
}

Semantic roles & 50–950 ramp

primary

#579DCB

secondary

#D7BAA7

accent

#854CDC

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #579DCB

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

Preview Lab → · Contrast checker → · Palette generator →