#559BB9#559BB9

#559BB9 is a light, moderate cyan. Relative luminance 0.289; OKLCH L 65.5% C 0.083 H 227.9°. Best body text is #000000 at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#559BB9
RGB	rgb(85, 155, 185)
HSL	hsl(198, 42%, 53%)
HSV	hsv(198, 54%, 73%)
CMYK	cmyk(54.1%, 16.2%, 0%, 27.5%)
CIE-LAB	lab(60.67, -13.48, -22.30)
CIE-LCH	lch(60.67, 26.06, 238.85°)
OKLab	oklab(65.54% -0.0559 -0.062)
OKLCH	oklch(65.54% 0.083 227.9)
XYZ	xyz(24.2213, 28.8746, 50.1865)
Luminance	0.2888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BB9 #B97355

analogous

#55B9A5 #559BB9 #5569B9

triadic

#559BB9 #B9559B #9BB955

tetradic

#559BB9 #A555B9 #B97355 #69B955

square

#559BB9 #A555B9 #B97355 #69B955

split-complementary

#559BB9 #B95569 #B9A555

monochromatic

#2B5669 #3D7A94 #559BB9 #80B4CB #ACCEDD

Accessibility & contrast

On white

3.10

#559BB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.78

#559BB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559BB9

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BB9	#FFFFFF	#000000	##000000
##559BB9	1.00	3.10	6.78	6.78
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.78	21.00	1.00	1.00
##000000	6.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B98BB

Deuteranopia (green-blind)

#7D8EB9

Tritanopia (blue-blind)

#07A4A5

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #559bb9;
/* rgb */ color: rgb(85, 155, 185);
/* oklch */ color: oklch(65.5% 0.083 227.9);

Tailwind

colors: {
  custom: {
    50: '#8cb8ce',
    500: '#559bb9',
    950: '#000000',
  },
}

SCSS

$custom: #559bb9;
$custom-light: #8cb8ce;
$custom-dark: #000000;

JSON

{
  "hex": "#559bb9",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 185
  },
  "hsl": {
    "h": 198,
    "s": 41.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.65543,
    "c": 0.08348,
    "h": 227.9
  },
  "luminance": 0.28877
}

Semantic roles & 50–950 ramp

primary

#559BB9

secondary

#CBAC9F

accent

#7B56D1

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1113

muted

#7E8082

Preview Lab

Preview with #559BB9

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

Preview Lab → · Contrast checker → · Palette generator →