#559CDD#559CDD

#559CDD is a light, vivid cyan. Relative luminance 0.309; OKLCH L 67.4% C 0.121 H 248.1°. Best body text is #000000 at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#559CDD
RGB	rgb(85, 156, 221)
HSL	hsl(209, 67%, 60%)
HSV	hsv(209, 62%, 87%)
CMYK	cmyk(61.5%, 29.4%, 0%, 13.3%)
CIE-LAB	lab(62.45, -2.76, -39.68)
CIE-LCH	lch(62.45, 39.77, 266.03°)
OKLab	oklab(67.44% -0.0449 -0.1119)
OKLCH	oklch(67.44% 0.121 248.1)
XYZ	xyz(28.6811, 30.9260, 72.8504)
Luminance	0.3093 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559CDD #DD9655

analogous

#55DDDA #559CDD #5558DD

triadic

#559CDD #DD559C #9CDD55

tetradic

#559CDD #DA55DD #DD9655 #58DD55

square

#559CDD #DA55DD #DD9655 #58DD55

split-complementary

#559CDD #DD5558 #DDDA55

monochromatic

#1F5F99 #297ECC #559CDD #88BAE7 #BBD7F1

Accessibility & contrast

On white

2.92

#559CDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.19

#559CDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559CDD

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559CDD	#FFFFFF	#000000	##000000
##559CDD	1.00	2.92	7.19	7.19
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.19	21.00	1.00	1.00
##000000	7.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#809EE0

Deuteranopia (green-blind)

#6E91DC

Tritanopia (blue-blind)

#00ABB3

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #559cdd;
/* rgb */ color: rgb(85, 156, 221);
/* oklch */ color: oklch(67.4% 0.121 248.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#559cdd",
  "rgb": {
    "r": 85,
    "g": 156,
    "b": 221
  },
  "hsl": {
    "h": 208.676,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.67438,
    "c": 0.12056,
    "h": 248.1
  },
  "luminance": 0.30929
}

Semantic roles & 50–950 ramp

primary

#559CDD

secondary

#E1C6AD

accent

#903EEA

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #559CDD

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

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