#559CDE#559CDE

#559CDE is a light, vivid cyan. Relative luminance 0.310; OKLCH L 67.5% C 0.122 H 248.5°. Best body text is #000000 at 7.20:1 contrast (WCAG AA passes).

Color values

HEX	#559CDE
RGB	rgb(85, 156, 222)
HSL	hsl(209, 67%, 60%)
HSV	hsv(209, 62%, 87%)
CMYK	cmyk(61.7%, 29.7%, 0%, 12.9%)
CIE-LAB	lab(62.49, -2.43, -40.16)
CIE-LCH	lch(62.49, 40.23, 266.54°)
OKLab	oklab(67.49% -0.0446 -0.1133)
OKLCH	oklch(67.49% 0.122 248.5)
XYZ	xyz(28.8147, 30.9794, 73.5542)
Luminance	0.3098 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559CDE #DE9755

analogous

#55DEDB #559CDE #5557DE

triadic

#559CDE #DE559C #9CDE55

tetradic

#559CDE #DB55DE #DE9755 #57DE55

square

#559CDE #DB55DE #DE9755 #57DE55

split-complementary

#559CDE #DE5557 #DEDB55

monochromatic

#1E5F9B #287ECE #559CDE #88BAE8 #BCD8F2

Accessibility & contrast

On white

2.92

#559CDE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.20

#559CDE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559CDE

7.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559CDE	#FFFFFF	#000000	##000000
##559CDE	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)

#809EE1

Deuteranopia (green-blind)

#6D91DD

Tritanopia (blue-blind)

#00ACB3

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #559cde;
/* rgb */ color: rgb(85, 156, 222);
/* oklch */ color: oklch(67.5% 0.122 248.5);

Tailwind

colors: {
  custom: {
    50: '#90b9e8',
    500: '#559cde',
    950: '#000000',
  },
}

SCSS

$custom: #559cde;
$custom-light: #90b9e8;
$custom-dark: #000000;

JSON

{
  "hex": "#559cde",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 222
  },
  "hsl": {
    "h": 208.905,
    "s": 67.488,
    "l": 60.196
  },
  "oklch": {
    "l": 0.67488,
    "c": 0.12175,
    "h": 248.5
  },
  "luminance": 0.30982
}

Semantic roles & 50–950 ramp

primary

#559CDE

secondary

#E2C6AD

accent

#6F16CF

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559CDE

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

Preview Lab → · Contrast checker → · Palette generator →