#559CBB#559CBB

#559CBB is a light, moderate cyan. Relative luminance 0.293; OKLCH L 65.9% C 0.085 H 228.5°. Best body text is #000000 at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#559CBB
RGB	rgb(85, 156, 187)
HSL	hsl(198, 43%, 53%)
HSV	hsv(198, 55%, 73%)
CMYK	cmyk(54.5%, 16.6%, 0%, 26.7%)
CIE-LAB	lab(61.04, -13.42, -22.86)
CIE-LCH	lch(61.04, 26.51, 239.58°)
OKLab	oklab(65.86% -0.0563 -0.0636)
OKLCH	oklch(65.86% 0.085 228.5)
XYZ	xyz(24.6010, 29.2939, 51.3619)
Luminance	0.2930 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559CBB #BB7455

analogous

#55BBA7 #559CBB #5569BB

triadic

#559CBB #BB559C #9CBB55

tetradic

#559CBB #A755BB #BB7455 #69BB55

square

#559CBB #A755BB #BB7455 #69BB55

split-complementary

#559CBB #BB5569 #BBA755

monochromatic

#2B576B #3C7B97 #559CBB #81B5CC #ACCFDE

Accessibility & contrast

On white

3.06

#559CBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.86

#559CBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559CBB

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559CBB	#FFFFFF	#000000	##000000
##559CBB	1.00	3.06	6.86	6.86
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.86	21.00	1.00	1.00
##000000	6.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8C9ABD

Deuteranopia (green-blind)

#7D8EBB

Tritanopia (blue-blind)

#00A5A6

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #559cbb;
/* rgb */ color: rgb(85, 156, 187);
/* oklch */ color: oklch(65.9% 0.085 228.5);

Tailwind

colors: {
  custom: {
    50: '#8cb9cf',
    500: '#559cbb',
    950: '#000000',
  },
}

SCSS

$custom: #559cbb;
$custom-light: #8cb9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#559cbb",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 187
  },
  "hsl": {
    "h": 198.235,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.65862,
    "c": 0.08493,
    "h": 228.5
  },
  "luminance": 0.29296
}

Semantic roles & 50–950 ramp

primary

#559CBB

secondary

#CCADA0

accent

#7B55D3

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1113

muted

#7E8082

Preview Lab

Preview with #559CBB

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

Preview Lab → · Contrast checker → · Palette generator →