#579CF0#579CF0

#579CF0 is a light, vivid cyan. Relative luminance 0.321; OKLCH L 68.5% C 0.143 H 254.5°. Best body text is #000000 at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#579CF0
RGB	rgb(87, 156, 240)
HSL	hsl(213, 84%, 64%)
HSV	hsv(213, 64%, 94%)
CMYK	cmyk(63.7%, 35%, 0%, 5.9%)
CIE-LAB	lab(63.42, 3.85, -48.63)
CIE-LCH	lch(63.42, 48.78, 274.52°)
OKLab	oklab(68.52% -0.0383 -0.1379)
OKLCH	oklch(68.52% 0.143 254.5)
XYZ	xyz(31.5414, 32.0914, 86.9532)
Luminance	0.3209 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579CF0 #F0AB57

analogous

#57E9F0 #579CF0 #5F57F0

triadic

#579CF0 #F0579C #9CF057

tetradic

#579CF0 #F057E9 #F0AB57 #57F05F

square

#579CF0 #F057E9 #F0AB57 #57F05F

split-complementary

#579CF0 #F05F57 #E9F057

monochromatic

#115EBC #1F7BEB #579CF0 #8FBDF5 #C7DEFA

Accessibility & contrast

On white

2.83

#579CF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.42

#579CF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579CF0

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579CF0	#FFFFFF	#000000	##000000
##579CF0	1.00	2.83	7.42	7.42
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.42	21.00	1.00	1.00
##000000	7.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77A1F3

Deuteranopia (green-blind)

#6293EE

Tritanopia (blue-blind)

#00AFBB

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #579cf0;
/* rgb */ color: rgb(87, 156, 240);
/* oklch */ color: oklch(68.5% 0.143 254.5);

Tailwind

colors: {
  custom: {
    50: '#94b8f5',
    500: '#579cf0',
    950: '#000000',
  },
}

SCSS

$custom: #579cf0;
$custom-light: #94b8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#579cf0",
  "rgb": {
    "r": 87,
    "g": 156,
    "b": 240
  },
  "hsl": {
    "h": 212.941,
    "s": 83.607,
    "l": 64.118
  },
  "oklch": {
    "l": 0.68516,
    "c": 0.14312,
    "h": 254.5
  },
  "luminance": 0.32094
}

Semantic roles & 50–950 ramp

primary

#579CF0

secondary

#ECD4B7

accent

#7D05E0

background

#F9FBFF

surface

#F2F6FE

border

#CCD0D6

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #579CF0

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

Preview Lab → · Contrast checker → · Palette generator →