#5399EF#5399EF

#5399EF is a light, vivid cyan. Relative luminance 0.309; OKLCH L 67.6% C 0.146 H 254.7°. Best body text is #000000 at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#5399EF
RGB	rgb(83, 153, 239)
HSL	hsl(213, 83%, 63%)
HSV	hsv(213, 65%, 94%)
CMYK	cmyk(65.3%, 36%, 0%, 6.3%)
CIE-LAB	lab(62.38, 4.59, -49.73)
CIE-LCH	lch(62.38, 49.94, 275.27°)
OKLab	oklab(67.65% -0.0385 -0.1412)
OKLCH	oklch(67.65% 0.146 254.7)
XYZ	xyz(30.5328, 30.8504, 85.9902)
Luminance	0.3085 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5399EF #EFA953

analogous

#53E7EF #5399EF #5B53EF

triadic

#5399EF #EF5399 #99EF53

tetradic

#5399EF #EF53E7 #EFA953 #53EF5B

square

#5399EF #EF53E7 #EFA953 #53EF5B

split-complementary

#5399EF #EF5B53 #E7EF53

monochromatic

#115BB7 #1B78EA #5399EF #8BBAF4 #C3DBF9

Accessibility & contrast

On white

2.93

#5399EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.17

#5399EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5399EF

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5399EF	#FFFFFF	#000000	##000000
##5399EF	1.00	2.93	7.17	7.17
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.17	21.00	1.00	1.00
##000000	7.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#739FF3

Deuteranopia (green-blind)

#5D90ED

Tritanopia (blue-blind)

#00ADB9

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #5399ef;
/* rgb */ color: rgb(83, 153, 239);
/* oklch */ color: oklch(67.6% 0.146 254.7);

Tailwind

colors: {
  custom: {
    50: '#92b6f4',
    500: '#5399ef',
    950: '#000000',
  },
}

SCSS

$custom: #5399ef;
$custom-light: #92b6f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5399ef",
  "rgb": {
    "r": 83,
    "g": 153,
    "b": 239
  },
  "hsl": {
    "h": 213.077,
    "s": 82.979,
    "l": 63.137
  },
  "oklch": {
    "l": 0.67647,
    "c": 0.14638,
    "h": 254.7
  },
  "luminance": 0.30853
}

Semantic roles & 50–950 ramp

primary

#5399EF

secondary

#EBD2B3

accent

#7E06DF

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #5399EF

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

Preview Lab → · Contrast checker → · Palette generator →