#559BDF#559BDF

#559BDF is a light, vivid cyan. Relative luminance 0.307; OKLCH L 67.3% C 0.124 H 249.5°. Best body text is #000000 at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#559BDF
RGB	rgb(85, 155, 223)
HSL	hsl(210, 68%, 60%)
HSV	hsv(210, 62%, 87%)
CMYK	cmyk(61.9%, 30.5%, 0%, 12.5%)
CIE-LAB	lab(62.25, -1.53, -41.09)
CIE-LCH	lch(62.25, 41.11, 267.86°)
OKLab	oklab(67.32% -0.0433 -0.116)
OKLCH	oklch(67.32% 0.124 249.5)
XYZ	xyz(28.7821, 30.6989, 74.2064)
Luminance	0.3070 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BDF #DF9955

analogous

#55DFDE #559BDF #5556DF

triadic

#559BDF #DF559B #9BDF55

tetradic

#559BDF #DE55DF #DF9955 #56DF55

square

#559BDF #DE55DF #DF9955 #56DF55

split-complementary

#559BDF #DF5556 #DFDE55

monochromatic

#1D5E9C #277DD0 #559BDF #89B9E9 #BCD8F2

Accessibility & contrast

On white

2.94

#559BDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.14

#559BDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559BDF

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BDF	#FFFFFF	#000000	##000000
##559BDF	1.00	2.94	7.14	7.14
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.14	21.00	1.00	1.00
##000000	7.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E9EE2

Deuteranopia (green-blind)

#6B90DE

Tritanopia (blue-blind)

#00ABB3

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #559bdf;
/* rgb */ color: rgb(85, 155, 223);
/* oklch */ color: oklch(67.3% 0.124 249.5);

Tailwind

colors: {
  custom: {
    50: '#91b8e9',
    500: '#559bdf',
    950: '#000000',
  },
}

SCSS

$custom: #559bdf;
$custom-light: #91b8e9;
$custom-dark: #000000;

JSON

{
  "hex": "#559bdf",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 223
  },
  "hsl": {
    "h": 209.565,
    "s": 68.317,
    "l": 60.392
  },
  "oklch": {
    "l": 0.67316,
    "c": 0.12379,
    "h": 249.5
  },
  "luminance": 0.30702
}

Semantic roles & 50–950 ramp

primary

#559BDF

secondary

#E2C8AE

accent

#7115D0

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559BDF

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

Preview Lab → · Contrast checker → · Palette generator →