#559BD9#559BD9

#559BD9 is a light, moderate cyan. Relative luminance 0.304; OKLCH L 67.0% C 0.117 H 247.3°. Best body text is #000000 at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#559BD9
RGB	rgb(85, 155, 217)
HSL	hsl(208, 63%, 59%)
HSV	hsv(208, 61%, 85%)
CMYK	cmyk(60.8%, 28.6%, 0%, 14.9%)
CIE-LAB	lab(61.98, -3.49, -38.18)
CIE-LCH	lch(61.98, 38.34, 264.78°)
OKLab	oklab(67.01% -0.0451 -0.1075)
OKLCH	oklch(67.01% 0.117 247.3)
XYZ	xyz(27.9874, 30.3811, 70.0214)
Luminance	0.3038 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BD9 #D99355

analogous

#55D9D5 #559BD9 #5559D9

triadic

#559BD9 #D9559B #9BD955

tetradic

#559BD9 #D555D9 #D99355 #59D955

square

#559BD9 #D555D9 #D99355 #59D955

split-complementary

#559BD9 #D95559 #D9D555

monochromatic

#215D93 #2C7DC5 #559BD9 #87B8E4 #B9D6EF

Accessibility & contrast

On white

2.97

#559BD9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.08

#559BD9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559BD9

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BD9	#FFFFFF	#000000	##000000
##559BD9	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)

#809DDC

Deuteranopia (green-blind)

#6E90D8

Tritanopia (blue-blind)

#00AAB1

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #559bd9;
/* rgb */ color: rgb(85, 155, 217);
/* oklch */ color: oklch(67.0% 0.117 247.3);

Tailwind

colors: {
  custom: {
    50: '#90b8e5',
    500: '#559bd9',
    950: '#000000',
  },
}

SCSS

$custom: #559bd9;
$custom-light: #90b8e5;
$custom-dark: #000000;

JSON

{
  "hex": "#559bd9",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 217
  },
  "hsl": {
    "h": 208.182,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.67014,
    "c": 0.1166,
    "h": 247.3
  },
  "luminance": 0.30384
}

Semantic roles & 50–950 ramp

primary

#559BD9

secondary

#DFC3AB

accent

#8F41E6

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1115

muted

#7E8084

Preview Lab

Preview with #559BD9

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

Preview Lab → · Contrast checker → · Palette generator →