#539BF0#539BF0

#539BF0 is a light, vivid cyan. Relative luminance 0.316; OKLCH L 68.1% C 0.146 H 254.0°. Best body text is #000000 at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#539BF0
RGB	rgb(83, 155, 240)
HSL	hsl(212, 84%, 63%)
HSV	hsv(212, 65%, 94%)
CMYK	cmyk(65.4%, 35.4%, 0%, 5.9%)
CIE-LAB	lab(62.99, 3.76, -49.32)
CIE-LCH	lch(62.99, 49.46, 274.36°)
OKLab	oklab(68.14% -0.0402 -0.14)
OKLCH	oklch(68.14% 0.146 254)
XYZ	xyz(31.0111, 31.5698, 86.8805)
Luminance	0.3157 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539BF0 #F0A853

analogous

#53E9F0 #539BF0 #5953F0

triadic

#539BF0 #F0539B #9BF053

tetradic

#539BF0 #F053E9 #F0A853 #53F059

square

#539BF0 #F053E9 #F0A853 #53F059

split-complementary

#539BF0 #F05953 #E9F053

monochromatic

#105DB9 #1B7AEB #539BF0 #8BBCF5 #C4DCFA

Accessibility & contrast

On white

2.87

#539BF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.31

#539BF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #539BF0

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539BF0	#FFFFFF	#000000	##000000
##539BF0	1.00	2.87	7.31	7.31
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.31	21.00	1.00	1.00
##000000	7.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76A1F4

Deuteranopia (green-blind)

#5F92EE

Tritanopia (blue-blind)

#00AFBA

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #539bf0;
/* rgb */ color: rgb(83, 155, 240);
/* oklch */ color: oklch(68.1% 0.146 254.0);

Tailwind

colors: {
  custom: {
    50: '#92b8f5',
    500: '#539bf0',
    950: '#000000',
  },
}

SCSS

$custom: #539bf0;
$custom-light: #92b8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#539bf0",
  "rgb": {
    "r": 83,
    "g": 155,
    "b": 240
  },
  "hsl": {
    "h": 212.484,
    "s": 83.957,
    "l": 63.333
  },
  "oklch": {
    "l": 0.68135,
    "c": 0.14566,
    "h": 254
  },
  "luminance": 0.31573
}

Semantic roles & 50–950 ramp

primary

#539BF0

secondary

#EBD2B3

accent

#7C05E0

background

#F9FBFF

surface

#F2F6FE

border

#CCD0D6

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #539BF0

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

Preview Lab → · Contrast checker → · Palette generator →