#539DE9#539DE9

#539DE9 is a light, vivid cyan. Relative luminance 0.318; OKLCH L 68.2% C 0.135 H 251.0°. Best body text is #000000 at 7.37:1 contrast (WCAG AA passes).

Color values

HEX	#539DE9
RGB	rgb(83, 157, 233)
HSL	hsl(210, 77%, 62%)
HSV	hsv(210, 64%, 91%)
CMYK	cmyk(64.4%, 32.6%, 0%, 8.6%)
CIE-LAB	lab(63.20, 0.26, -45.12)
CIE-LCH	lch(63.20, 45.12, 270.34°)
OKLab	oklab(68.19% -0.044 -0.1277)
OKLCH	oklch(68.19% 0.135 251)
XYZ	xyz(30.3268, 31.8331, 81.6212)
Luminance	0.3184 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539DE9 #E99F53

analogous

#53E8E9 #539DE9 #5453E9

triadic

#539DE9 #E9539D #9DE953

tetradic

#539DE9 #E953E8 #E99F53 #53E954

square

#539DE9 #E953E8 #E99F53 #53E954

split-complementary

#539DE9 #E95453 #E8E953

monochromatic

#1660AC #1D7EE2 #539DE9 #89BCF0 #C0DBF7

Accessibility & contrast

On white

2.85

#539DE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.37

#539DE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #539DE9

7.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539DE9	#FFFFFF	#000000	##000000
##539DE9	1.00	2.85	7.37	7.37
#FFFFFF	2.85	1.00	21.00	21.00
#000000	7.37	21.00	1.00	1.00
##000000	7.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7CA1EC

Deuteranopia (green-blind)

#6793E7

Tritanopia (blue-blind)

#00AFB8

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #539de9;
/* rgb */ color: rgb(83, 157, 233);
/* oklch */ color: oklch(68.2% 0.135 251.0);

Tailwind

colors: {
  custom: {
    50: '#91b9f0',
    500: '#539de9',
    950: '#000000',
  },
}

SCSS

$custom: #539de9;
$custom-light: #91b9f0;
$custom-dark: #000000;

JSON

{
  "hex": "#539de9",
  "rgb": {
    "r": 83,
    "g": 157,
    "b": 233
  },
  "hsl": {
    "h": 210.4,
    "s": 77.32,
    "l": 61.961
  },
  "oklch": {
    "l": 0.68195,
    "c": 0.13509,
    "h": 251
  },
  "luminance": 0.31836
}

Semantic roles & 50–950 ramp

primary

#539DE9

secondary

#E8CCB0

accent

#740CDA

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #539DE9

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

Preview Lab → · Contrast checker → · Palette generator →