#63ABF0#63ABF0

#63ABF0 is a light, vivid cyan. Relative luminance 0.381; OKLCH L 72.3% C 0.125 H 249.0°. Best body text is #000000 at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#63ABF0
RGB	rgb(99, 171, 240)
HSL	hsl(209, 82%, 66%)
HSV	hsv(209, 59%, 94%)
CMYK	cmyk(58.8%, 28.8%, 0%, 5.9%)
CIE-LAB	lab(68.07, -2.52, -41.28)
CIE-LCH	lch(68.07, 41.36, 266.50°)
OKLab	oklab(72.3% -0.0447 -0.1162)
OKLCH	oklch(72.3% 0.125 249)
XYZ	xyz(35.4310, 38.0665, 87.9016)
Luminance	0.3807 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63ABF0 #F0A863

analogous

#63F0EF #63ABF0 #6365F0

triadic

#63ABF0 #F063AB #ABF063

tetradic

#63ABF0 #EF63F0 #F0A863 #65F063

square

#63ABF0 #EF63F0 #F0A863 #65F063

split-complementary

#63ABF0 #F06365 #F0EF63

monochromatic

#136EC6 #2B8DEB #63ABF0 #9BC9F5 #D3E7FB

Accessibility & contrast

On white

2.44

#63ABF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.61

#63ABF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ABF0

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63ABF0	#FFFFFF	#000000	##000000
##63ABF0	1.00	2.44	8.61	8.61
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.61	21.00	1.00	1.00
##000000	8.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8EAEF3

Deuteranopia (green-blind)

#7BA0EF

Tritanopia (blue-blind)

#00BBC3

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #63abf0;
/* rgb */ color: rgb(99, 171, 240);
/* oklch */ color: oklch(72.3% 0.125 249.0);

Tailwind

colors: {
  custom: {
    50: '#9ac3f5',
    500: '#63abf0',
    950: '#000000',
  },
}

SCSS

$custom: #63abf0;
$custom-light: #9ac3f5;
$custom-dark: #000000;

JSON

{
  "hex": "#63abf0",
  "rgb": {
    "r": 99,
    "g": 171,
    "b": 240
  },
  "hsl": {
    "h": 209.362,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.72296,
    "c": 0.12452,
    "h": 249
  },
  "luminance": 0.3807
}

Semantic roles & 50–950 ramp

primary

#63ABF0

secondary

#EED7C1

accent

#7007DF

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63ABF0

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

Preview Lab → · Contrast checker → · Palette generator →