#559BD1#559BD1

#559BD1 is a light, moderate cyan. Relative luminance 0.300; OKLCH L 66.6% C 0.107 H 243.7°. Best body text is #000000 at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#559BD1
RGB	rgb(85, 155, 209)
HSL	hsl(206, 57%, 58%)
HSV	hsv(206, 59%, 82%)
CMYK	cmyk(59.3%, 25.8%, 0%, 18%)
CIE-LAB	lab(61.63, -6.05, -34.27)
CIE-LCH	lch(61.63, 34.80, 259.98°)
OKLab	oklab(66.62% -0.0476 -0.0962)
OKLCH	oklch(66.62% 0.107 243.7)
XYZ	xyz(26.9720, 29.9749, 64.6736)
Luminance	0.2998 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BD1 #D18B55

analogous

#55D1C9 #559BD1 #555DD1

triadic

#559BD1 #D1559B #9BD155

tetradic

#559BD1 #C955D1 #D18B55 #5DD155

square

#559BD1 #C955D1 #D18B55 #5DD155

split-complementary

#559BD1 #D1555D #D1C955

monochromatic

#255C87 #327DB7 #559BD1 #85B7DE #B5D4EB

Accessibility & contrast

On white

3.00

#559BD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

7.00

#559BD1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559BD1

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BD1	#FFFFFF	#000000	##000000
##559BD1	1.00	3.00	7.00	7.00
#FFFFFF	3.00	1.00	21.00	21.00
#000000	7.00	21.00	1.00	1.00
##000000	7.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#839CD3

Deuteranopia (green-blind)

#738FD0

Tritanopia (blue-blind)

#00A8AE

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #559bd1;
/* rgb */ color: rgb(85, 155, 209);
/* oklch */ color: oklch(66.6% 0.107 243.7);

Tailwind

colors: {
  custom: {
    50: '#8fb8df',
    500: '#559bd1',
    950: '#000000',
  },
}

SCSS

$custom: #559bd1;
$custom-light: #8fb8df;
$custom-dark: #000000;

JSON

{
  "hex": "#559bd1",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 209
  },
  "hsl": {
    "h": 206.129,
    "s": 57.407,
    "l": 57.647
  },
  "oklch": {
    "l": 0.66624,
    "c": 0.10734,
    "h": 243.7
  },
  "luminance": 0.29977
}

Semantic roles & 50–950 ramp

primary

#559BD1

secondary

#DABEA8

accent

#8A47E1

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #559BD1

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

Preview Lab → · Contrast checker → · Palette generator →