#559BBB#559BBB

#559BBB is a light, moderate cyan. Relative luminance 0.290; OKLCH L 65.6% C 0.085 H 229.6°. Best body text is #000000 at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#559BBB
RGB	rgb(85, 155, 187)
HSL	hsl(199, 43%, 53%)
HSV	hsv(199, 55%, 73%)
CMYK	cmyk(54.5%, 17.1%, 0%, 26.7%)
CIE-LAB	lab(60.75, -12.88, -23.31)
CIE-LCH	lch(60.75, 26.63, 241.08°)
OKLab	oklab(65.63% -0.0552 -0.0648)
OKLCH	oklch(65.63% 0.085 229.6)
XYZ	xyz(24.4339, 28.9597, 51.3062)
Luminance	0.2896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BBB #BB7555

analogous

#55BBA8 #559BBB #5568BB

triadic

#559BBB #BB559B #9BBB55

tetradic

#559BBB #A855BB #BB7555 #68BB55

square

#559BBB #A855BB #BB7555 #68BB55

split-complementary

#559BBB #BB5568 #BBA855

monochromatic

#2B576B #3C7A97 #559BBB #81B5CC #ACCEDE

Accessibility & contrast

On white

3.09

#559BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.79

#559BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559BBB

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BBB	#FFFFFF	#000000	##000000
##559BBB	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)

#8B99BD

Deuteranopia (green-blind)

#7C8EBB

Tritanopia (blue-blind)

#00A4A5

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #559bbb;
/* rgb */ color: rgb(85, 155, 187);
/* oklch */ color: oklch(65.6% 0.085 229.6);

Tailwind

colors: {
  custom: {
    50: '#8cb8cf',
    500: '#559bbb',
    950: '#000000',
  },
}

SCSS

$custom: #559bbb;
$custom-light: #8cb8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#559bbb",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 187
  },
  "hsl": {
    "h": 198.824,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.65628,
    "c": 0.08514,
    "h": 229.6
  },
  "luminance": 0.28962
}

Semantic roles & 50–950 ramp

primary

#559BBB

secondary

#CCAEA0

accent

#7D55D3

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1113

muted

#7E8082

Preview Lab

Preview with #559BBB

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

Preview Lab → · Contrast checker → · Palette generator →