#559CB0#559CB0

#559CB0 is a light, moderate cyan. Relative luminance 0.288; OKLCH L 65.4% C 0.077 H 218.3°. Best body text is #000000 at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#559CB0
RGB	rgb(85, 156, 176)
HSL	hsl(193, 37%, 51%)
HSV	hsv(193, 52%, 69%)
CMYK	cmyk(51.7%, 11.4%, 0%, 31%)
CIE-LAB	lab(60.64, -16.67, -17.27)
CIE-LCH	lch(60.64, 24.00, 226.01°)
OKLab	oklab(65.41% -0.0606 -0.0478)
OKLCH	oklch(65.41% 0.077 218.3)
XYZ	xyz(23.4683, 28.8408, 45.3960)
Luminance	0.2884 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559CB0 #B06955

analogous

#55B096 #559CB0 #556EB0

triadic

#559CB0 #B0559C #9CB055

tetradic

#559CB0 #9655B0 #B06955 #6EB055

square

#559CB0 #9655B0 #B06955 #6EB055

split-complementary

#559CB0 #B0556E #B09655

monochromatic

#2C535F #3F7888 #559CB0 #7FB4C3 #A9CDD7

Accessibility & contrast

On white

3.10

#559CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.77

#559CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559CB0

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559CB0	#FFFFFF	#000000	##000000
##559CB0	1.00	3.10	6.77	6.77
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.77	21.00	1.00	1.00
##000000	6.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F98B1

Deuteranopia (green-blind)

#818EB0

Tritanopia (blue-blind)

#1BA3A2

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #559cb0;
/* rgb */ color: rgb(85, 156, 176);
/* oklch */ color: oklch(65.4% 0.077 218.3);

Tailwind

colors: {
  custom: {
    50: '#8bb9c7',
    500: '#559cb0',
    950: '#000000',
  },
}

SCSS

$custom: #559cb0;
$custom-light: #8bb9c7;
$custom-dark: #000000;

JSON

{
  "hex": "#559cb0",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 176
  },
  "hsl": {
    "h": 193.187,
    "s": 36.546,
    "l": 51.176
  },
  "oklch": {
    "l": 0.65412,
    "c": 0.07716,
    "h": 218.3
  },
  "luminance": 0.28843
}

Semantic roles & 50–950 ramp

primary

#559CB0

secondary

#C5A59C

accent

#745BCD

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #559CB0

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

Preview Lab → · Contrast checker → · Palette generator →