#559BB4#559BB4

#559BB4 is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.3% C 0.080 H 223.4°. Best body text is #000000 at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#559BB4
RGB	rgb(85, 155, 180)
HSL	hsl(196, 39%, 52%)
HSV	hsv(196, 53%, 71%)
CMYK	cmyk(52.8%, 13.9%, 0%, 29.4%)
CIE-LAB	lab(60.49, -14.96, -19.76)
CIE-LCH	lch(60.49, 24.79, 232.87°)
OKLab	oklab(65.34% -0.0578 -0.0548)
OKLCH	oklch(65.34% 0.08 223.4)
XYZ	xyz(23.7028, 28.6672, 47.4554)
Luminance	0.2867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BB4 #B46E55

analogous

#55B49E #559BB4 #556CB4

triadic

#559BB4 #B4559B #9BB455

tetradic

#559BB4 #9E55B4 #B46E55 #6CB455

square

#559BB4 #9E55B4 #B46E55 #6CB455

split-complementary

#559BB4 #B4556C #B49E55

monochromatic

#2C5463 #3E798D #559BB4 #7FB4C7 #AACDD9

Accessibility & contrast

On white

3.12

#559BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.73

#559BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559BB4

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BB4	#FFFFFF	#000000	##000000
##559BB4	1.00	3.12	6.73	6.73
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.73	21.00	1.00	1.00
##000000	6.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D98B5

Deuteranopia (green-blind)

#7F8DB4

Tritanopia (blue-blind)

#15A3A3

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #559bb4;
/* rgb */ color: rgb(85, 155, 180);
/* oklch */ color: oklch(65.3% 0.080 223.4);

Tailwind

colors: {
  custom: {
    50: '#8cb8ca',
    500: '#559bb4',
    950: '#000000',
  },
}

SCSS

$custom: #559bb4;
$custom-light: #8cb8ca;
$custom-dark: #000000;

JSON

{
  "hex": "#559bb4",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 180
  },
  "hsl": {
    "h": 195.789,
    "s": 38.776,
    "l": 51.961
  },
  "oklch": {
    "l": 0.65336,
    "c": 0.07968,
    "h": 223.4
  },
  "luminance": 0.28669
}

Semantic roles & 50–950 ramp

primary

#559BB4

secondary

#C7A99E

accent

#7859CF

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0D1113

muted

#7D8082

Preview Lab

Preview with #559BB4

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

Preview Lab → · Contrast checker → · Palette generator →