#539EE9#539EE9

#539EE9 is a light, vivid cyan. Relative luminance 0.322; OKLCH L 68.4% C 0.134 H 250.4°. Best body text is #000000 at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#539EE9
RGB	rgb(83, 158, 233)
HSL	hsl(210, 77%, 62%)
HSV	hsv(210, 64%, 91%)
CMYK	cmyk(64.4%, 32.2%, 0%, 8.6%)
CIE-LAB	lab(63.49, -0.31, -44.68)
CIE-LCH	lch(63.49, 44.68, 269.60°)
OKLab	oklab(68.42% -0.045 -0.1264)
OKLCH	oklch(68.42% 0.134 250.4)
XYZ	xyz(30.4967, 32.1729, 81.6778)
Luminance	0.3218 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539EE9 #E99E53

analogous

#53E9E9 #539EE9 #5353E9

triadic

#539EE9 #E9539E #9EE953

tetradic

#539EE9 #E953E9 #E99E53 #53E953

square

#539EE9 #E953E9 #E99E53 #53E953

split-complementary

#539EE9 #E95353 #E9E953

monochromatic

#1661AC #1D7FE2 #539EE9 #89BDF0 #C0DBF7

Accessibility & contrast

On white

2.82

#539EE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.44

#539EE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #539EE9

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539EE9	#FFFFFF	#000000	##000000
##539EE9	1.00	2.82	7.44	7.44
#FFFFFF	2.82	1.00	21.00	21.00
#000000	7.44	21.00	1.00	1.00
##000000	7.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7DA2EC

Deuteranopia (green-blind)

#6993E8

Tritanopia (blue-blind)

#00B0B9

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #539ee9;
/* rgb */ color: rgb(83, 158, 233);
/* oklch */ color: oklch(68.4% 0.134 250.4);

Tailwind

colors: {
  custom: {
    50: '#91baf0',
    500: '#539ee9',
    950: '#000000',
  },
}

SCSS

$custom: #539ee9;
$custom-light: #91baf0;
$custom-dark: #000000;

JSON

{
  "hex": "#539ee9",
  "rgb": {
    "r": 83,
    "g": 158,
    "b": 233
  },
  "hsl": {
    "h": 210,
    "s": 77.32,
    "l": 61.961
  },
  "oklch": {
    "l": 0.68416,
    "c": 0.1342,
    "h": 250.4
  },
  "luminance": 0.32176
}

Semantic roles & 50–950 ramp

primary

#539EE9

secondary

#E8CCB0

accent

#730CDA

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #539EE9

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

Preview Lab → · Contrast checker → · Palette generator →