#559DD9#559DD9

#559DD9 is a light, moderate cyan. Relative luminance 0.311; OKLCH L 67.5% C 0.115 H 245.8°. Best body text is #000000 at 7.21:1 contrast (WCAG AA passes).

Color values

HEX	#559DD9
RGB	rgb(85, 157, 217)
HSL	hsl(207, 63%, 59%)
HSV	hsv(207, 61%, 85%)
CMYK	cmyk(60.8%, 27.6%, 0%, 14.9%)
CIE-LAB	lab(62.55, -4.62, -37.29)
CIE-LCH	lch(62.55, 37.57, 262.94°)
OKLab	oklab(67.46% -0.0472 -0.1049)
OKLCH	oklch(67.46% 0.115 245.8)
XYZ	xyz(28.3230, 31.0523, 70.1333)
Luminance	0.3105 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559DD9 #D99155

analogous

#55D9D3 #559DD9 #555BD9

triadic

#559DD9 #D9559D #9DD955

tetradic

#559DD9 #D355D9 #D99155 #5BD955

square

#559DD9 #D355D9 #D99155 #5BD955

split-complementary

#559DD9 #D9555B #D9D355

monochromatic

#215F93 #2C7FC5 #559DD9 #87BAE4 #B9D7EF

Accessibility & contrast

On white

2.91

#559DD9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.21

#559DD9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559DD9

7.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559DD9	#FFFFFF	#000000	##000000
##559DD9	1.00	2.91	7.21	7.21
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.21	21.00	1.00	1.00
##000000	7.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#839FDC

Deuteranopia (green-blind)

#7191D8

Tritanopia (blue-blind)

#00ABB2

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #559dd9;
/* rgb */ color: rgb(85, 157, 217);
/* oklch */ color: oklch(67.5% 0.115 245.8);

Tailwind

colors: {
  custom: {
    50: '#90b9e5',
    500: '#559dd9',
    950: '#000000',
  },
}

SCSS

$custom: #559dd9;
$custom-light: #90b9e5;
$custom-dark: #000000;

JSON

{
  "hex": "#559dd9",
  "rgb": {
    "r": 85,
    "g": 157,
    "b": 217
  },
  "hsl": {
    "h": 207.273,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.67463,
    "c": 0.11506,
    "h": 245.8
  },
  "luminance": 0.31055
}

Semantic roles & 50–950 ramp

primary

#559DD9

secondary

#DFC3AB

accent

#8C41E6

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1115

muted

#7E8084

Preview Lab

Preview with #559DD9

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

Preview Lab → · Contrast checker → · Palette generator →