#559BF0#559BF0

#559BF0 is a light, vivid cyan. Relative luminance 0.317; OKLCH L 68.2% C 0.145 H 254.5°. Best body text is #000000 at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#559BF0
RGB	rgb(85, 155, 240)
HSL	hsl(213, 84%, 64%)
HSV	hsv(213, 65%, 94%)
CMYK	cmyk(64.6%, 35.4%, 0%, 5.9%)
CIE-LAB	lab(63.06, 4.09, -49.19)
CIE-LCH	lch(63.06, 49.36, 274.75°)
OKLab	oklab(68.22% -0.0388 -0.1396)
OKLCH	oklch(68.22% 0.145 254.5)
XYZ	xyz(31.1901, 31.6622, 86.8889)
Luminance	0.3166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559BF0 #F0AA55

analogous

#55E9F0 #559BF0 #5C55F0

triadic

#559BF0 #F0559B #9BF055

tetradic

#559BF0 #F055E9 #F0AA55 #55F05C

square

#559BF0 #F055E9 #F0AA55 #55F05C

split-complementary

#559BF0 #F05C55 #E9F055

monochromatic

#105DBA #1D7AEB #559BF0 #8DBCF5 #C5DDFA

Accessibility & contrast

On white

2.86

#559BF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.33

#559BF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559BF0

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559BF0	#FFFFFF	#000000	##000000
##559BF0	1.00	2.86	7.33	7.33
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.33	21.00	1.00	1.00
##000000	7.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#76A1F4

Deuteranopia (green-blind)

#6092EE

Tritanopia (blue-blind)

#00AFBA

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #559bf0;
/* rgb */ color: rgb(85, 155, 240);
/* oklch */ color: oklch(68.2% 0.145 254.5);

Tailwind

colors: {
  custom: {
    50: '#93b8f5',
    500: '#559bf0',
    950: '#000000',
  },
}

SCSS

$custom: #559bf0;
$custom-light: #93b8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#559bf0",
  "rgb": {
    "r": 85,
    "g": 155,
    "b": 240
  },
  "hsl": {
    "h": 212.903,
    "s": 83.784,
    "l": 63.725
  },
  "oklch": {
    "l": 0.68216,
    "c": 0.14488,
    "h": 254.5
  },
  "luminance": 0.31665
}

Semantic roles & 50–950 ramp

primary

#559BF0

secondary

#ECD3B5

accent

#7D05E0

background

#F9FBFF

surface

#F2F6FE

border

#CCD0D6

text

#0E1117

muted

#7E8085

Preview Lab

Preview with #559BF0

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

Preview Lab → · Contrast checker → · Palette generator →