#539CF0#539CF0

#539CF0 is a light, vivid cyan. Relative luminance 0.319; OKLCH L 68.4% C 0.145 H 253.5°. Best body text is #000000 at 7.38:1 contrast (WCAG AA passes).

Color values

HEX	#539CF0
RGB	rgb(83, 156, 240)
HSL	hsl(212, 84%, 63%)
HSV	hsv(212, 65%, 94%)
CMYK	cmyk(65.4%, 35%, 0%, 5.9%)
CIE-LAB	lab(63.26, 3.18, -48.88)
CIE-LCH	lch(63.26, 48.98, 273.72°)
OKLab	oklab(68.35% -0.0412 -0.1387)
OKLCH	oklch(68.35% 0.145 253.5)
XYZ	xyz(31.1782, 31.9041, 86.9362)
Luminance	0.3191 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539CF0 #F0A753

analogous

#53EAF0 #539CF0 #5853F0

triadic

#539CF0 #F0539C #9CF053

tetradic

#539CF0 #F053EA #F0A753 #53F058

square

#539CF0 #F053EA #F0A753 #53F058

split-complementary

#539CF0 #F05853 #EAF053

monochromatic

#105EB9 #1B7CEB #539CF0 #8BBCF5 #C4DDFA

Accessibility & contrast

On white

2.84

#539CF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.38

#539CF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #539CF0

7.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539CF0	#FFFFFF	#000000	##000000
##539CF0	1.00	2.84	7.38	7.38
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.38	21.00	1.00	1.00
##000000	7.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77A1F3

Deuteranopia (green-blind)

#6192EE

Tritanopia (blue-blind)

#00AFBB

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #539cf0;
/* rgb */ color: rgb(83, 156, 240);
/* oklch */ color: oklch(68.4% 0.145 253.5);

Tailwind

colors: {
  custom: {
    50: '#92b8f5',
    500: '#539cf0',
    950: '#000000',
  },
}

SCSS

$custom: #539cf0;
$custom-light: #92b8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#539cf0",
  "rgb": {
    "r": 83,
    "g": 156,
    "b": 240
  },
  "hsl": {
    "h": 212.102,
    "s": 83.957,
    "l": 63.333
  },
  "oklch": {
    "l": 0.68352,
    "c": 0.1447,
    "h": 253.5
  },
  "luminance": 0.31907
}

Semantic roles & 50–950 ramp

primary

#539CF0

secondary

#EBD1B3

accent

#7A05E0

background

#F9FBFF

surface

#F2F6FE

border

#CCD0D6

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #539CF0

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

Preview Lab → · Contrast checker → · Palette generator →