#559DB0#559DB0

#559DB0 is a light, moderate cyan. Relative luminance 0.292; OKLCH L 65.6% C 0.077 H 217.0°. Best body text is #000000 at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#559DB0
RGB	rgb(85, 157, 176)
HSL	hsl(193, 37%, 51%)
HSV	hsv(193, 52%, 69%)
CMYK	cmyk(51.7%, 10.8%, 0%, 31%)
CIE-LAB	lab(60.94, -17.20, -16.82)
CIE-LCH	lch(60.94, 24.06, 224.36°)
OKLab	oklab(65.65% -0.0618 -0.0465)
OKLCH	oklch(65.65% 0.077 217)
XYZ	xyz(23.6367, 29.1778, 45.4522)
Luminance	0.2918 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559DB0 #B06855

analogous

#55B095 #559DB0 #556FB0

triadic

#559DB0 #B0559D #9DB055

tetradic

#559DB0 #9555B0 #B06855 #6FB055

square

#559DB0 #9555B0 #B06855 #6FB055

split-complementary

#559DB0 #B0556F #B09555

monochromatic

#2C545F #3F7988 #559DB0 #7FB5C3 #A9CDD7

Accessibility & contrast

On white

3.07

#559DB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.84

#559DB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559DB0

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559DB0	#FFFFFF	#000000	##000000
##559DB0	1.00	3.07	6.84	6.84
#FFFFFF	3.07	1.00	21.00	21.00
#000000	6.84	21.00	1.00	1.00
##000000	6.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9099B1

Deuteranopia (green-blind)

#828FB0

Tritanopia (blue-blind)

#1AA4A3

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #559db0;
/* rgb */ color: rgb(85, 157, 176);
/* oklch */ color: oklch(65.6% 0.077 217.0);

Tailwind

colors: {
  custom: {
    50: '#8bbac7',
    500: '#559db0',
    950: '#000000',
  },
}

SCSS

$custom: #559db0;
$custom-light: #8bbac7;
$custom-dark: #000000;

JSON

{
  "hex": "#559db0",
  "rgb": {
    "r": 85,
    "g": 157,
    "b": 176
  },
  "hsl": {
    "h": 192.527,
    "s": 36.546,
    "l": 51.176
  },
  "oklch": {
    "l": 0.65649,
    "c": 0.07732,
    "h": 217
  },
  "luminance": 0.2918
}

Semantic roles & 50–950 ramp

primary

#559DB0

secondary

#C5A59C

accent

#735BCD

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #559DB0

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

Preview Lab → · Contrast checker → · Palette generator →