#559CD3#559CD3

#559CD3 is a light, moderate cyan. Relative luminance 0.304; OKLCH L 66.9% C 0.109 H 243.9°. Best body text is #000000 at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#559CD3
RGB	rgb(85, 156, 211)
HSL	hsl(206, 59%, 58%)
HSV	hsv(206, 60%, 83%)
CMYK	cmyk(59.7%, 26.1%, 0%, 17.3%)
CIE-LAB	lab(62.01, -5.98, -34.80)
CIE-LCH	lch(62.01, 35.31, 260.25°)
OKLab	oklab(66.95% -0.048 -0.0978)
OKLCH	oklch(66.95% 0.109 243.9)
XYZ	xyz(27.3883, 30.4088, 66.0415)
Luminance	0.3041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559CD3 #D38C55

analogous

#55D3CB #559CD3 #555DD3

triadic

#559CD3 #D3559C #9CD355

tetradic

#559CD3 #CB55D3 #D38C55 #5DD355

square

#559CD3 #CB55D3 #D38C55 #5DD355

split-complementary

#559CD3 #D3555D #D3CB55

monochromatic

#245D8A #307EBB #559CD3 #86B8E0 #B6D5EC

Accessibility & contrast

On white

2.97

#559CD3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.08

#559CD3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559CD3

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559CD3	#FFFFFF	#000000	##000000
##559CD3	1.00	2.97	7.08	7.08
#FFFFFF	2.97	1.00	21.00	21.00
#000000	7.08	21.00	1.00	1.00
##000000	7.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#849DD6

Deuteranopia (green-blind)

#7390D2

Tritanopia (blue-blind)

#00A9AF

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #559cd3;
/* rgb */ color: rgb(85, 156, 211);
/* oklch */ color: oklch(66.9% 0.109 243.9);

Tailwind

colors: {
  custom: {
    50: '#8fb9e0',
    500: '#559cd3',
    950: '#000000',
  },
}

SCSS

$custom: #559cd3;
$custom-light: #8fb9e0;
$custom-dark: #000000;

JSON

{
  "hex": "#559cd3",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 211
  },
  "hsl": {
    "h": 206.19,
    "s": 58.879,
    "l": 58.039
  },
  "oklch": {
    "l": 0.66946,
    "c": 0.10892,
    "h": 243.9
  },
  "luminance": 0.30411
}

Semantic roles & 50–950 ramp

primary

#559CD3

secondary

#DBBFA9

accent

#8A46E2

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #559CD3

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

Preview Lab → · Contrast checker → · Palette generator →