#539FE9#539FE9

#539FE9 is a light, vivid cyan. Relative luminance 0.325; OKLCH L 68.6% C 0.133 H 249.8°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#539FE9
RGB	rgb(83, 159, 233)
HSL	hsl(210, 77%, 62%)
HSV	hsv(210, 64%, 91%)
CMYK	cmyk(64.4%, 31.8%, 0%, 8.6%)
CIE-LAB	lab(63.77, -0.88, -44.24)
CIE-LCH	lch(63.77, 44.25, 268.86°)
OKLab	oklab(68.64% -0.046 -0.1251)
OKLCH	oklch(68.64% 0.133 249.8)
XYZ	xyz(30.6680, 32.5154, 81.7349)
Luminance	0.3252 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#539FE9 #E99D53

analogous

#53E9E8 #539FE9 #5354E9

triadic

#539FE9 #E9539F #9FE953

tetradic

#539FE9 #E853E9 #E99D53 #54E953

square

#539FE9 #E853E9 #E99D53 #54E953

split-complementary

#539FE9 #E95354 #E9E853

monochromatic

#1662AC #1D81E2 #539FE9 #89BDF0 #C0DCF7

Accessibility & contrast

On white

2.80

#539FE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#539FE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #539FE9

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##539FE9	#FFFFFF	#000000	##000000
##539FE9	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7FA2EC

Deuteranopia (green-blind)

#6A94E8

Tritanopia (blue-blind)

#00B0B9

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #539fe9;
/* rgb */ color: rgb(83, 159, 233);
/* oklch */ color: oklch(68.6% 0.133 249.8);

Tailwind

colors: {
  custom: {
    50: '#91bbf0',
    500: '#539fe9',
    950: '#000000',
  },
}

SCSS

$custom: #539fe9;
$custom-light: #91bbf0;
$custom-dark: #000000;

JSON

{
  "hex": "#539fe9",
  "rgb": {
    "r": 83,
    "g": 159,
    "b": 233
  },
  "hsl": {
    "h": 209.6,
    "s": 77.32,
    "l": 61.961
  },
  "oklch": {
    "l": 0.68636,
    "c": 0.13332,
    "h": 249.8
  },
  "luminance": 0.32518
}

Semantic roles & 50–950 ramp

primary

#539FE9

secondary

#E8CCB0

accent

#710CDA

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #539FE9

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

Preview Lab → · Contrast checker → · Palette generator →