#559CEF#559CEF

#559CEF is a light, vivid cyan. Relative luminance 0.319; OKLCH L 68.4% C 0.143 H 253.7°. Best body text is #000000 at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#559CEF
RGB	rgb(85, 156, 239)
HSL	hsl(212, 83%, 64%)
HSV	hsv(212, 64%, 94%)
CMYK	cmyk(64.4%, 34.7%, 0%, 6.3%)
CIE-LAB	lab(63.29, 3.17, -48.28)
CIE-LCH	lch(63.29, 48.39, 273.76°)
OKLab	oklab(68.38% -0.04 -0.1369)
OKLCH	oklch(68.38% 0.143 253.7)
XYZ	xyz(31.2091, 31.9371, 86.1644)
Luminance	0.3194 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559CEF #EFA855

analogous

#55E9EF #559CEF #5B55EF

triadic

#559CEF #EF559C #9CEF55

tetradic

#559CEF #EF55E9 #EFA855 #55EF5B

square

#559CEF #EF55E9 #EFA855 #55EF5B

split-complementary

#559CEF #EF5B55 #E9EF55

monochromatic

#115EB8 #1D7BEA #559CEF #8DBDF4 #C5DDFA

Accessibility & contrast

On white

2.84

#559CEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.39

#559CEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559CEF

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559CEF	#FFFFFF	#000000	##000000
##559CEF	1.00	2.84	7.39	7.39
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.39	21.00	1.00	1.00
##000000	7.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78A1F2

Deuteranopia (green-blind)

#6293ED

Tritanopia (blue-blind)

#00AFBA

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #559cef;
/* rgb */ color: rgb(85, 156, 239);
/* oklch */ color: oklch(68.4% 0.143 253.7);

Tailwind

colors: {
  custom: {
    50: '#93b8f4',
    500: '#559cef',
    950: '#000000',
  },
}

SCSS

$custom: #559cef;
$custom-light: #93b8f4;
$custom-dark: #000000;

JSON

{
  "hex": "#559cef",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 239
  },
  "hsl": {
    "h": 212.338,
    "s": 82.796,
    "l": 63.529
  },
  "oklch": {
    "l": 0.68379,
    "c": 0.14266,
    "h": 253.7
  },
  "luminance": 0.3194
}

Semantic roles & 50–950 ramp

primary

#559CEF

secondary

#EBD2B5

accent

#7B06DF

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #559CEF

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

Preview Lab → · Contrast checker → · Palette generator →