#559FB1#559FB1

#559FB1 is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.2% C 0.078 H 215.5°. Best body text is #000000 at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#559FB1
RGB	rgb(85, 159, 177)
HSL	hsl(192, 37%, 51%)
HSV	hsv(192, 52%, 69%)
CMYK	cmyk(52%, 10.2%, 0%, 30.6%)
CIE-LAB	lab(61.57, -17.98, -16.43)
CIE-LCH	lch(61.57, 24.35, 222.43°)
OKLab	oklab(66.16% -0.0637 -0.0454)
OKLCH	oklch(66.16% 0.078 215.5)
XYZ	xyz(24.0772, 29.8998, 46.0889)
Luminance	0.2990 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559FB1 #B16755

analogous

#55B195 #559FB1 #5571B1

triadic

#559FB1 #B1559F #9FB155

tetradic

#559FB1 #9555B1 #B16755 #71B155

square

#559FB1 #9555B1 #B16755 #71B155

split-complementary

#559FB1 #B15571 #B19555

monochromatic

#2C5660 #3F7B8A #559FB1 #7FB7C4 #A9CED7

Accessibility & contrast

On white

3.01

#559FB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.98

#559FB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559FB1

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559FB1	#FFFFFF	#000000	##000000
##559FB1	1.00	3.01	6.98	6.98
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.98	21.00	1.00	1.00
##000000	6.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#929BB2

Deuteranopia (green-blind)

#8490B1

Tritanopia (blue-blind)

#17A6A4

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #559fb1;
/* rgb */ color: rgb(85, 159, 177);
/* oklch */ color: oklch(66.2% 0.078 215.5);

Tailwind

colors: {
  custom: {
    50: '#8cbbc8',
    500: '#559fb1',
    950: '#000000',
  },
}

SCSS

$custom: #559fb1;
$custom-light: #8cbbc8;
$custom-dark: #000000;

JSON

{
  "hex": "#559fb1",
  "rgb": {
    "r": 85,
    "g": 159,
    "b": 177
  },
  "hsl": {
    "h": 191.739,
    "s": 37.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.66164,
    "c": 0.07823,
    "h": 215.5
  },
  "luminance": 0.29902
}

Semantic roles & 50–950 ramp

primary

#559FB1

secondary

#C5A59D

accent

#715BCD

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0D1213

muted

#7D8182

Preview Lab

Preview with #559FB1

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

Preview Lab → · Contrast checker → · Palette generator →