#559CB3#559CB3

#559CB3 is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.5% C 0.079 H 221.2°. Best body text is #000000 at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#559CB3
RGB	rgb(85, 156, 179)
HSL	hsl(195, 38%, 52%)
HSV	hsv(195, 53%, 70%)
CMYK	cmyk(52.5%, 12.8%, 0%, 29.8%)
CIE-LAB	lab(60.75, -15.80, -18.80)
CIE-LCH	lch(60.75, 24.56, 229.97°)
OKLab	oklab(65.53% -0.0594 -0.0521)
OKLCH	oklch(65.53% 0.079 221.2)
XYZ	xyz(23.7684, 28.9608, 46.9765)
Luminance	0.2896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559CB3 #B36C55

analogous

#55B39B #559CB3 #556DB3

triadic

#559CB3 #B3559C #9CB355

tetradic

#559CB3 #9B55B3 #B36C55 #6DB355

square

#559CB3 #9B55B3 #B36C55 #6DB355

split-complementary

#559CB3 #B3556D #B39B55

monochromatic

#2C5562 #3F798C #559CB3 #7FB5C6 #AACDD9

Accessibility & contrast

On white

3.09

#559CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.79

#559CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559CB3

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559CB3	#FFFFFF	#000000	##000000
##559CB3	1.00	3.09	6.79	6.79
#FFFFFF	3.09	1.00	21.00	21.00
#000000	6.79	21.00	1.00	1.00
##000000	6.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8E99B4

Deuteranopia (green-blind)

#808EB3

Tritanopia (blue-blind)

#16A4A3

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #559cb3;
/* rgb */ color: rgb(85, 156, 179);
/* oklch */ color: oklch(65.5% 0.079 221.2);

Tailwind

colors: {
  custom: {
    50: '#8cb9c9',
    500: '#559cb3',
    950: '#000000',
  },
}

SCSS

$custom: #559cb3;
$custom-light: #8cb9c9;
$custom-dark: #000000;

JSON

{
  "hex": "#559cb3",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 179
  },
  "hsl": {
    "h": 194.681,
    "s": 38.211,
    "l": 51.765
  },
  "oklch": {
    "l": 0.65532,
    "c": 0.079,
    "h": 221.2
  },
  "luminance": 0.28963
}

Semantic roles & 50–950 ramp

primary

#559CB3

secondary

#C7A79D

accent

#765ACE

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0D1113

muted

#7D8082

Preview Lab

Preview with #559CB3

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

Preview Lab → · Contrast checker → · Palette generator →