#579BF0#579BF0

#579BF0 is a light, vivid cyan. Relative luminance 0.318; OKLCH L 68.3% C 0.144 H 255.0°. Best body text is #000000 at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#579BF0
RGB	rgb(87, 155, 240)
HSL	hsl(213, 84%, 64%)
HSV	hsv(213, 64%, 94%)
CMYK	cmyk(63.7%, 35.4%, 0%, 5.9%)
CIE-LAB	lab(63.14, 4.43, -49.06)
CIE-LCH	lch(63.14, 49.26, 275.15°)
OKLab	oklab(68.3% -0.0373 -0.1392)
OKLCH	oklch(68.3% 0.144 255)
XYZ	xyz(31.3743, 31.7571, 86.8975)
Luminance	0.3176 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#579BF0 #F0AC57

analogous

#57E8F0 #579BF0 #6057F0

triadic

#579BF0 #F0579B #9BF057

tetradic

#579BF0 #F057E8 #F0AC57 #57F060

square

#579BF0 #F057E8 #F0AC57 #57F060

split-complementary

#579BF0 #F06057 #E8F057

monochromatic

#115DBC #1F7AEB #579BF0 #8FBCF5 #C7DEFA

Accessibility & contrast

On white

2.86

#579BF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.35

#579BF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #579BF0

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##579BF0	#FFFFFF	#000000	##000000
##579BF0	1.00	2.86	7.35	7.35
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.35	21.00	1.00	1.00
##000000	7.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76A1F4

Deuteranopia (green-blind)

#6192EE

Tritanopia (blue-blind)

#00AFBA

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #579bf0;
/* rgb */ color: rgb(87, 155, 240);
/* oklch */ color: oklch(68.3% 0.144 255.0);

Tailwind

colors: {
  custom: {
    50: '#94b8f5',
    500: '#579bf0',
    950: '#000000',
  },
}

SCSS

$custom: #579bf0;
$custom-light: #94b8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#579bf0",
  "rgb": {
    "r": 87,
    "g": 155,
    "b": 240
  },
  "hsl": {
    "h": 213.333,
    "s": 83.607,
    "l": 64.118
  },
  "oklch": {
    "l": 0.683,
    "c": 0.14411,
    "h": 255
  },
  "luminance": 0.3176
}

Semantic roles & 50–950 ramp

primary

#579BF0

secondary

#ECD4B7

accent

#7F05E0

background

#F9FBFF

surface

#F2F6FE

border

#CCD0D6

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #579BF0

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

Preview Lab → · Contrast checker → · Palette generator →