#559DDD#559DDD

#559DDD is a light, moderate cyan. Relative luminance 0.313; OKLCH L 67.7% C 0.120 H 247.4°. Best body text is #000000 at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#559DDD
RGB	rgb(85, 157, 221)
HSL	hsl(208, 67%, 60%)
HSV	hsv(208, 62%, 87%)
CMYK	cmyk(61.5%, 29%, 0%, 13.3%)
CIE-LAB	lab(62.73, -3.32, -39.23)
CIE-LCH	lch(62.73, 39.37, 265.16°)
OKLab	oklab(67.66% -0.046 -0.1106)
OKLCH	oklch(67.66% 0.12 247.4)
XYZ	xyz(28.8496, 31.2629, 72.9066)
Luminance	0.3127 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559DDD #DD9555

analogous

#55DDD9 #559DDD #5559DD

triadic

#559DDD #DD559D #9DDD55

tetradic

#559DDD #D955DD #DD9555 #59DD55

square

#559DDD #D955DD #DD9555 #59DD55

split-complementary

#559DDD #DD5559 #DDD955

monochromatic

#1F5F99 #297FCC #559DDD #88BAE7 #BBD8F1

Accessibility & contrast

On white

2.90

#559DDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.25

#559DDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559DDD

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559DDD	#FFFFFF	#000000	##000000
##559DDD	1.00	2.90	7.25	7.25
#FFFFFF	2.90	1.00	21.00	21.00
#000000	7.25	21.00	1.00	1.00
##000000	7.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#819FE0

Deuteranopia (green-blind)

#6F92DC

Tritanopia (blue-blind)

#00ACB3

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #559ddd;
/* rgb */ color: rgb(85, 157, 221);
/* oklch */ color: oklch(67.7% 0.120 247.4);

Tailwind

colors: {
  custom: {
    50: '#90b9e8',
    500: '#559ddd',
    950: '#000000',
  },
}

SCSS

$custom: #559ddd;
$custom-light: #90b9e8;
$custom-dark: #000000;

JSON

{
  "hex": "#559ddd",
  "rgb": {
    "r": 85,
    "g": 157,
    "b": 221
  },
  "hsl": {
    "h": 208.235,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.67661,
    "c": 0.11975,
    "h": 247.4
  },
  "luminance": 0.31266
}

Semantic roles & 50–950 ramp

primary

#559DDD

secondary

#E1C5AD

accent

#8F3EEA

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559DDD

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

Preview Lab → · Contrast checker → · Palette generator →