#559BCF#559BCF

#559BCF is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.5% C 0.105 H 242.7°. Best body text is #000000 at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#559BCF
RGB	rgb(85, 155, 207)
HSL	hsl(206, 56%, 57%)
HSV	hsv(206, 59%, 81%)
CMYK	cmyk(58.9%, 25.1%, 0%, 18.8%)
CIE-LAB	lab(61.55, -6.69, -33.29)
CIE-LCH	lch(61.55, 33.95, 258.64°)
OKLab	oklab(66.53% -0.0482 -0.0934)
OKLCH	oklch(66.53% 0.105 242.7)
XYZ	xyz(26.7260, 29.8765, 63.3777)
Luminance	0.2988 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BCF #CF8955

analogous

#55CFC6 #559BCF #555ECF

triadic

#559BCF #CF559B #9BCF55

tetradic

#559BCF #C655CF #CF8955 #5ECF55

square

#559BCF #C655CF #CF8955 #5ECF55

split-complementary

#559BCF #CF555E #CFC655

monochromatic

#255C84 #337DB4 #559BCF #85B7DC #B4D3EA

Accessibility & contrast

On white

3.01

#559BCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.98

#559BCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #559BCF

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

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

#849BD1

Deuteranopia (green-blind)

#748FCE

Tritanopia (blue-blind)

#00A8AD

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #559bcf;
/* rgb */ color: rgb(85, 155, 207);
/* oklch */ color: oklch(66.5% 0.105 242.7);

Tailwind

colors: {
  custom: {
    50: '#8fb8de',
    500: '#559bcf',
    950: '#000000',
  },
}

SCSS

$custom: #559bcf;
$custom-light: #8fb8de;
$custom-dark: #000000;

JSON

{
  "hex": "#559bcf",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 207
  },
  "hsl": {
    "h": 205.574,
    "s": 55.963,
    "l": 57.255
  },
  "oklch": {
    "l": 0.66529,
    "c": 0.10509,
    "h": 242.7
  },
  "luminance": 0.29879
}

Semantic roles & 50–950 ramp

primary

#559BCF

secondary

#D9BCA7

accent

#8949DF

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #559BCF

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

Preview Lab → · Contrast checker → · Palette generator →