#579FEF#579FEF

#579FEF is a light, vivid cyan. Relative luminance 0.331; OKLCH L 69.1% C 0.139 H 252.6°. Best body text is #000000 at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#579FEF
RGB	rgb(87, 159, 239)
HSL	hsl(212, 83%, 64%)
HSV	hsv(212, 64%, 94%)
CMYK	cmyk(63.6%, 33.5%, 0%, 6.3%)
CIE-LAB	lab(64.20, 1.78, -46.84)
CIE-LCH	lch(64.20, 46.87, 272.18°)
OKLab	oklab(69.11% -0.0415 -0.1327)
OKLCH	oklch(69.11% 0.139 252.6)
XYZ	xyz(31.9029, 33.0514, 86.3429)
Luminance	0.3306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579FEF #EFA757

analogous

#57EBEF #579FEF #5B57EF

triadic

#579FEF #EF579F #9FEF57

tetradic

#579FEF #EF57EB #EFA757 #57EF5B

square

#579FEF #EF57EB #EFA757 #57EF5B

split-complementary

#579FEF #EF5B57 #EBEF57

monochromatic

#1261BA #1F7FEA #579FEF #8FBFF4 #C7DFFA

Accessibility & contrast

On white

2.76

#579FEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.61

#579FEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579FEF

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579FEF	#FFFFFF	#000000	##000000
##579FEF	1.00	2.76	7.61	7.61
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.61	21.00	1.00	1.00
##000000	7.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7CA4F2

Deuteranopia (green-blind)

#6795ED

Tritanopia (blue-blind)

#00B2BC

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #579fef;
/* rgb */ color: rgb(87, 159, 239);
/* oklch */ color: oklch(69.1% 0.139 252.6);

Tailwind

colors: {
  custom: {
    50: '#94bbf4',
    500: '#579fef',
    950: '#000000',
  },
}

SCSS

$custom: #579fef;
$custom-light: #94bbf4;
$custom-dark: #000000;

JSON

{
  "hex": "#579fef",
  "rgb": {
    "r": 87,
    "g": 159,
    "b": 239
  },
  "hsl": {
    "h": 211.579,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.69113,
    "c": 0.13901,
    "h": 252.6
  },
  "luminance": 0.33055
}

Semantic roles & 50–950 ramp

primary

#579FEF

secondary

#ECD2B6

accent

#7806DF

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #579FEF

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

Preview Lab → · Contrast checker → · Palette generator →