#559DD4#559DD4

#559DD4 is a light, moderate cyan. Relative luminance 0.308; OKLCH L 67.2% C 0.109 H 243.5°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#559DD4
RGB	rgb(85, 157, 212)
HSL	hsl(206, 60%, 58%)
HSV	hsv(206, 60%, 83%)
CMYK	cmyk(59.9%, 25.9%, 0%, 16.9%)
CIE-LAB	lab(62.34, -6.22, -34.85)
CIE-LCH	lch(62.34, 35.40, 259.88°)
OKLab	oklab(67.22% -0.0488 -0.0979)
OKLCH	oklch(67.22% 0.109 243.5)
XYZ	xyz(27.6825, 30.7961, 66.7600)
Luminance	0.3080 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559DD4 #D48C55

analogous

#55D4CB #559DD4 #555DD4

triadic

#559DD4 #D4559D #9DD455

tetradic

#559DD4 #CB55D4 #D48C55 #5DD455

square

#559DD4 #CB55D4 #D48C55 #5DD455

split-complementary

#559DD4 #D4555D #D4CB55

monochromatic

#235E8B #307FBC #559DD4 #86B9E0 #B7D5ED

Accessibility & contrast

On white

2.93

#559DD4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.16

#559DD4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559DD4

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559DD4	#FFFFFF	#000000	##000000
##559DD4	1.00	2.93	7.16	7.16
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.16	21.00	1.00	1.00
##000000	7.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#859ED7

Deuteranopia (green-blind)

#7491D3

Tritanopia (blue-blind)

#00AAB0

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #559dd4;
/* rgb */ color: rgb(85, 157, 212);
/* oklch */ color: oklch(67.2% 0.109 243.5);

Tailwind

colors: {
  custom: {
    50: '#8fb9e1',
    500: '#559dd4',
    950: '#000000',
  },
}

SCSS

$custom: #559dd4;
$custom-light: #8fb9e1;
$custom-dark: #000000;

JSON

{
  "hex": "#559dd4",
  "rgb": {
    "r": 85,
    "g": 157,
    "b": 212
  },
  "hsl": {
    "h": 205.984,
    "s": 59.624,
    "l": 58.235
  },
  "oklch": {
    "l": 0.67221,
    "c": 0.10936,
    "h": 243.5
  },
  "luminance": 0.30799
}

Semantic roles & 50–950 ramp

primary

#559DD4

secondary

#DCBFA9

accent

#8945E3

background

#F9FBFD

surface

#F2F6FB

border

#CCD0D4

text

#0D1115

muted

#7E8083

Preview Lab

Preview with #559DD4

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

Preview Lab → · Contrast checker → · Palette generator →