#559BDD#559BDD

#559BDD is a light, vivid cyan. Relative luminance 0.306; OKLCH L 67.2% C 0.121 H 248.8°. Best body text is #000000 at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#559BDD
RGB	rgb(85, 155, 221)
HSL	hsl(209, 67%, 60%)
HSV	hsv(209, 62%, 87%)
CMYK	cmyk(61.5%, 29.9%, 0%, 13.3%)
CIE-LAB	lab(62.16, -2.19, -40.12)
CIE-LCH	lch(62.16, 40.18, 266.88°)
OKLab	oklab(67.22% -0.0439 -0.1132)
OKLCH	oklch(67.22% 0.121 248.8)
XYZ	xyz(28.5140, 30.5917, 72.7947)
Luminance	0.3059 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BDD #DD9755

analogous

#55DDDB #559BDD #5557DD

triadic

#559BDD #DD559B #9BDD55

tetradic

#559BDD #DB55DD #DD9755 #57DD55

square

#559BDD #DB55DD #DD9755 #57DD55

split-complementary

#559BDD #DD5557 #DDDB55

monochromatic

#1F5E99 #297DCC #559BDD #88B9E7 #BBD7F1

Accessibility & contrast

On white

2.95

#559BDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.12

#559BDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559BDD

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BDD	#FFFFFF	#000000	##000000
##559BDD	1.00	2.95	7.12	7.12
#FFFFFF	2.95	1.00	21.00	21.00
#000000	7.12	21.00	1.00	1.00
##000000	7.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F9EE0

Deuteranopia (green-blind)

#6C90DC

Tritanopia (blue-blind)

#00ABB2

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #559bdd;
/* rgb */ color: rgb(85, 155, 221);
/* oklch */ color: oklch(67.2% 0.121 248.8);

Tailwind

colors: {
  custom: {
    50: '#90b8e8',
    500: '#559bdd',
    950: '#000000',
  },
}

SCSS

$custom: #559bdd;
$custom-light: #90b8e8;
$custom-dark: #000000;

JSON

{
  "hex": "#559bdd",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 221
  },
  "hsl": {
    "h": 209.118,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.67215,
    "c": 0.12138,
    "h": 248.8
  },
  "luminance": 0.30594
}

Semantic roles & 50–950 ramp

primary

#559BDD

secondary

#E1C6AD

accent

#913EEA

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559BDD

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

Preview Lab → · Contrast checker → · Palette generator →