#559BE4#559BE4

#559BE4 is a light, vivid cyan. Relative luminance 0.310; OKLCH L 67.6% C 0.130 H 251.2°. Best body text is #000000 at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#559BE4
RGB	rgb(85, 155, 228)
HSL	hsl(211, 73%, 61%)
HSV	hsv(211, 63%, 89%)
CMYK	cmyk(62.7%, 32%, 0%, 10.6%)
CIE-LAB	lab(62.48, 0.11, -43.49)
CIE-LCH	lch(62.48, 43.49, 270.14°)
OKLab	oklab(67.58% -0.0419 -0.123)
OKLCH	oklch(67.58% 0.13 251.2)
XYZ	xyz(29.4661, 30.9726, 77.8092)
Luminance	0.3098 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BE4 #E49E55

analogous

#55E3E4 #559BE4 #5755E4

triadic

#559BE4 #E4559B #9BE455

tetradic

#559BE4 #E455E3 #E49E55 #55E457

square

#559BE4 #E455E3 #E49E55 #55E457

split-complementary

#559BE4 #E45755 #E3E455

monochromatic

#1A5EA4 #237CD9 #559BE4 #8ABAEC #BFD9F5

Accessibility & contrast

On white

2.92

#559BE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.20

#559BE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559BE4

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BE4	#FFFFFF	#000000	##000000
##559BE4	1.00	2.92	7.20	7.20
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.20	21.00	1.00	1.00
##000000	7.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9FE7

Deuteranopia (green-blind)

#6891E3

Tritanopia (blue-blind)

#00ACB5

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #559be4;
/* rgb */ color: rgb(85, 155, 228);
/* oklch */ color: oklch(67.6% 0.130 251.2);

Tailwind

colors: {
  custom: {
    50: '#91b8ed',
    500: '#559be4',
    950: '#000000',
  },
}

SCSS

$custom: #559be4;
$custom-light: #91b8ed;
$custom-dark: #000000;

JSON

{
  "hex": "#559be4",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 228
  },
  "hsl": {
    "h": 210.629,
    "s": 72.589,
    "l": 61.373
  },
  "oklch": {
    "l": 0.67575,
    "c": 0.1299,
    "h": 251.2
  },
  "luminance": 0.30975
}

Semantic roles & 50–950 ramp

primary

#559BE4

secondary

#E5CBB0

accent

#7511D5

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559BE4

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

Preview Lab → · Contrast checker → · Palette generator →