#579CCB#579CCB

#579CCB is a light, moderate cyan. Relative luminance 0.301; OKLCH L 66.7% C 0.099 H 240.3°. Best body text is #000000 at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#579CCB
RGB	rgb(87, 156, 203)
HSL	hsl(204, 53%, 57%)
HSV	hsv(204, 57%, 80%)
CMYK	cmyk(57.1%, 23.2%, 0%, 20.4%)
CIE-LAB	lab(61.75, -8.11, -30.73)
CIE-LCH	lch(61.75, 31.78, 255.22°)
OKLab	oklab(66.66% -0.0491 -0.086)
OKLCH	oklch(66.66% 0.099 240.3)
XYZ	xyz(26.5944, 30.1126, 60.8992)
Luminance	0.3011 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579CCB #CB8657

analogous

#57CBC0 #579CCB #5762CB

triadic

#579CCB #CB579C #9CCB57

tetradic

#579CCB #C057CB #CB8657 #62CB57

square

#579CCB #C057CB #CB8657 #62CB57

split-complementary

#579CCB #CB5762 #CBC057

monochromatic

#285C80 #367EAF #579CCB #86B8D9 #B4D3E8

Accessibility & contrast

On white

2.99

#579CCB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.02

#579CCB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579CCB

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579CCB	#FFFFFF	#000000	##000000
##579CCB	1.00	2.99	7.02	7.02
#FFFFFF	2.99	1.00	21.00	21.00
#000000	7.02	21.00	1.00	1.00
##000000	7.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879CCD

Deuteranopia (green-blind)

#7790CA

Tritanopia (blue-blind)

#00A8AC

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #579ccb;
/* rgb */ color: rgb(87, 156, 203);
/* oklch */ color: oklch(66.7% 0.099 240.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#579ccb",
  "rgb": {
    "r": 87,
    "g": 156,
    "b": 203
  },
  "hsl": {
    "h": 204.31,
    "s": 52.727,
    "l": 56.863
  },
  "oklch": {
    "l": 0.66657,
    "c": 0.09905,
    "h": 240.3
  },
  "luminance": 0.30115
}

Semantic roles & 50–950 ramp

primary

#579CCB

secondary

#D7BAA7

accent

#864CDC

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #579CCB

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

Preview Lab → · Contrast checker → · Palette generator →