#579CEF#579CEF

#579CEF is a light, vivid cyan. Relative luminance 0.320; OKLCH L 68.5% C 0.142 H 254.2°. Best body text is #000000 at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#579CEF
RGB	rgb(87, 156, 239)
HSL	hsl(213, 83%, 64%)
HSV	hsv(213, 64%, 94%)
CMYK	cmyk(63.6%, 34.7%, 0%, 6.3%)
CIE-LAB	lab(63.37, 3.51, -48.15)
CIE-LCH	lch(63.37, 48.28, 274.17°)
OKLab	oklab(68.46% -0.0385 -0.1365)
OKLCH	oklch(68.46% 0.142 254.2)
XYZ	xyz(31.3933, 32.0321, 86.1730)
Luminance	0.3204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579CEF #EFAA57

analogous

#57E8EF #579CEF #5E57EF

triadic

#579CEF #EF579C #9CEF57

tetradic

#579CEF #EF57E8 #EFAA57 #57EF5E

square

#579CEF #EF57E8 #EFAA57 #57EF5E

split-complementary

#579CEF #EF5E57 #E8EF57

monochromatic

#125EBA #1F7BEA #579CEF #8FBDF4 #C7DEFA

Accessibility & contrast

On white

2.84

#579CEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.41

#579CEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579CEF

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579CEF	#FFFFFF	#000000	##000000
##579CEF	1.00	2.84	7.41	7.41
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.41	21.00	1.00	1.00
##000000	7.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78A1F2

Deuteranopia (green-blind)

#6393ED

Tritanopia (blue-blind)

#00AFBA

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #579cef;
/* rgb */ color: rgb(87, 156, 239);
/* oklch */ color: oklch(68.5% 0.142 254.2);

Tailwind

colors: {
  custom: {
    50: '#94b8f4',
    500: '#579cef',
    950: '#000000',
  },
}

SCSS

$custom: #579cef;
$custom-light: #94b8f4;
$custom-dark: #000000;

JSON

{
  "hex": "#579cef",
  "rgb": {
    "r": 87,
    "g": 156,
    "b": 239
  },
  "hsl": {
    "h": 212.763,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.68462,
    "c": 0.14186,
    "h": 254.2
  },
  "luminance": 0.32035
}

Semantic roles & 50–950 ramp

primary

#579CEF

secondary

#ECD3B6

accent

#7D06DF

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #579CEF

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

Preview Lab → · Contrast checker → · Palette generator →