#579BCF#579BCF

#579BCF is a light, moderate cyan. Relative luminance 0.300; OKLCH L 66.6% C 0.104 H 243.3°. Best body text is #000000 at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#579BCF
RGB	rgb(87, 155, 207)
HSL	hsl(206, 56%, 58%)
HSV	hsv(206, 58%, 81%)
CMYK	cmyk(58%, 25.1%, 0%, 18.8%)
CIE-LAB	lab(61.63, -6.29, -33.15)
CIE-LCH	lch(61.63, 33.74, 259.25°)
OKLab	oklab(66.62% -0.0467 -0.093)
OKLCH	oklch(66.62% 0.104 243.3)
XYZ	xyz(26.9102, 29.9715, 63.3863)
Luminance	0.2997 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BCF #CF8B57

analogous

#57CFC7 #579BCF #575FCF

triadic

#579BCF #CF579B #9BCF57

tetradic

#579BCF #C757CF #CF8B57 #5FCF57

square

#579BCF #C757CF #CF8B57 #5FCF57

split-complementary

#579BCF #CF575F #CFC757

monochromatic

#265C85 #347DB5 #579BCF #87B7DD #B6D4EA

Accessibility & contrast

On white

3.00

#579BCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.99

#579BCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #579BCF

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BCF	#FFFFFF	#000000	##000000
##579BCF	1.00	3.00	6.99	6.99
#FFFFFF	3.00	1.00	21.00	21.00
#000000	6.99	21.00	1.00	1.00
##000000	6.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#849CD1

Deuteranopia (green-blind)

#748FCE

Tritanopia (blue-blind)

#00A8AD

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #579bcf;
/* rgb */ color: rgb(87, 155, 207);
/* oklch */ color: oklch(66.6% 0.104 243.3);

Tailwind

colors: {
  custom: {
    50: '#90b8de',
    500: '#579bcf',
    950: '#000000',
  },
}

SCSS

$custom: #579bcf;
$custom-light: #90b8de;
$custom-dark: #000000;

JSON

{
  "hex": "#579bcf",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 207
  },
  "hsl": {
    "h": 206,
    "s": 55.556,
    "l": 57.647
  },
  "oklch": {
    "l": 0.66616,
    "c": 0.10404,
    "h": 243.3
  },
  "luminance": 0.29974
}

Semantic roles & 50–950 ramp

primary

#579BCF

secondary

#D9BEA9

accent

#8A49DF

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #579BCF

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

Preview Lab → · Contrast checker → · Palette generator →