#559DE4#559DE4

#559DE4 is a light, vivid cyan. Relative luminance 0.316; OKLCH L 68.0% C 0.128 H 249.9°. Best body text is #000000 at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#559DE4
RGB	rgb(85, 157, 228)
HSL	hsl(210, 73%, 61%)
HSV	hsv(210, 63%, 89%)
CMYK	cmyk(62.7%, 31.1%, 0%, 10.6%)
CIE-LAB	lab(63.05, -1.04, -42.61)
CIE-LCH	lch(63.05, 42.62, 268.60°)
OKLab	oklab(68.02% -0.044 -0.1204)
OKLCH	oklch(68.02% 0.128 249.9)
XYZ	xyz(29.8017, 31.6438, 77.9211)
Luminance	0.3165 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559DE4 #E49C55

analogous

#55E4E3 #559DE4 #5556E4

triadic

#559DE4 #E4559D #9DE455

tetradic

#559DE4 #E355E4 #E49C55 #56E455

square

#559DE4 #E355E4 #E49C55 #56E455

split-complementary

#559DE4 #E45556 #E4E355

monochromatic

#1A60A4 #237FD9 #559DE4 #8ABBEC #BFDAF5

Accessibility & contrast

On white

2.87

#559DE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.33

#559DE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559DE4

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559DE4	#FFFFFF	#000000	##000000
##559DE4	1.00	2.87	7.33	7.33
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.33	21.00	1.00	1.00
##000000	7.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7EA0E7

Deuteranopia (green-blind)

#6B92E3

Tritanopia (blue-blind)

#00AEB6

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #559de4;
/* rgb */ color: rgb(85, 157, 228);
/* oklch */ color: oklch(68.0% 0.128 249.9);

Tailwind

colors: {
  custom: {
    50: '#91b9ed',
    500: '#559de4',
    950: '#000000',
  },
}

SCSS

$custom: #559de4;
$custom-light: #91b9ed;
$custom-dark: #000000;

JSON

{
  "hex": "#559de4",
  "rgb": {
    "r": 85,
    "g": 157,
    "b": 228
  },
  "hsl": {
    "h": 209.79,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.68016,
    "c": 0.12814,
    "h": 249.9
  },
  "luminance": 0.31647
}

Semantic roles & 50–950 ramp

primary

#559DE4

secondary

#E5CAB0

accent

#7211D5

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559DE4

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

Preview Lab → · Contrast checker → · Palette generator →