#63BBFF#63BBFF

#63BBFF is a light, vivid cyan. Relative luminance 0.454; OKLCH L 76.5% C 0.130 H 244.0°. Best body text is #000000 at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#63BBFF
RGB	rgb(99, 187, 255)
HSL	hsl(206, 100%, 69%)
HSV	hsv(206, 61%, 100%)
CMYK	cmyk(61.2%, 26.7%, 0%, 0%)
CIE-LAB	lab(73.16, -6.65, -41.45)
CIE-LCH	lch(73.16, 41.98, 260.89°)
OKLab	oklab(76.52% -0.0568 -0.1166)
OKLCH	oklch(76.52% 0.13 244)
XYZ	xyz(40.9592, 45.4093, 101.1947)
Luminance	0.4541 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBFF #FFA763

analogous

#63FFF5 #63BBFF #636DFF

triadic

#63BBFF #FF63BB #BBFF63

tetradic

#63BBFF #F563FF #FFA763 #6DFF63

square

#63BBFF #F563FF #FFA763 #6DFF63

split-complementary

#63BBFF #FF636D #FFF563

monochromatic

#0083E8 #26A0FF #63BBFF #A0D6FF #DDF0FF

Accessibility & contrast

On white

2.08

#63BBFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.08

#63BBFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBFF

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBFF	#FFFFFF	#000000	##000000
##63BBFF	1.00	2.08	10.08	10.08
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.08	21.00	1.00	1.00
##000000	10.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DBCFF

Deuteranopia (green-blind)

#88ADFE

Tritanopia (blue-blind)

#00CBD3

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #63bbff;
/* rgb */ color: rgb(99, 187, 255);
/* oklch */ color: oklch(76.5% 0.130 244.0);

Tailwind

colors: {
  custom: {
    50: '#9ccfff',
    500: '#63bbff',
    950: '#000000',
  },
}

SCSS

$custom: #63bbff;
$custom-light: #9ccfff;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbff",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 255
  },
  "hsl": {
    "h": 206.154,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.76521,
    "c": 0.12973,
    "h": 244
  },
  "luminance": 0.45413
}

Semantic roles & 50–950 ramp

primary

#63BBFF

secondary

#F5DCC8

accent

#6400E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #63BBFF

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

Preview Lab → · Contrast checker → · Palette generator →