#63BCFF#63BCFF

#63BCFF is a light, vivid cyan. Relative luminance 0.458; OKLCH L 76.7% C 0.129 H 243.4°. Best body text is #000000 at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#63BCFF
RGB	rgb(99, 188, 255)
HSL	hsl(206, 100%, 69%)
HSV	hsv(206, 61%, 100%)
CMYK	cmyk(61.2%, 26.3%, 0%, 0%)
CIE-LAB	lab(73.44, -7.19, -41.02)
CIE-LCH	lch(73.44, 41.64, 260.06°)
OKLab	oklab(76.74% -0.0578 -0.1154)
OKLCH	oklch(76.74% 0.129 243.4)
XYZ	xyz(41.1721, 45.8351, 101.2656)
Luminance	0.4584 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BCFF #FFA663

analogous

#63FFF4 #63BCFF #636EFF

triadic

#63BCFF #FF63BC #BCFF63

tetradic

#63BCFF #F463FF #FFA663 #6EFF63

square

#63BCFF #F463FF #FFA663 #6EFF63

split-complementary

#63BCFF #FF636E #FFF463

monochromatic

#0084E8 #26A2FF #63BCFF #A0D6FF #DDF1FF

Accessibility & contrast

On white

2.07

#63BCFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.17

#63BCFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BCFF

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BCFF	#FFFFFF	#000000	##000000
##63BCFF	1.00	2.07	10.17	10.17
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.17	21.00	1.00	1.00
##000000	10.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EBDFF

Deuteranopia (green-blind)

#89ADFE

Tritanopia (blue-blind)

#00CCD3

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #63bcff;
/* rgb */ color: rgb(99, 188, 255);
/* oklch */ color: oklch(76.7% 0.129 243.4);

Tailwind

colors: {
  custom: {
    50: '#9cd0ff',
    500: '#63bcff',
    950: '#000000',
  },
}

SCSS

$custom: #63bcff;
$custom-light: #9cd0ff;
$custom-dark: #000000;

JSON

{
  "hex": "#63bcff",
  "rgb": {
    "r": 99,
    "g": 188,
    "b": 255
  },
  "hsl": {
    "h": 205.769,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.7674,
    "c": 0.12905,
    "h": 243.4
  },
  "luminance": 0.45839
}

Semantic roles & 50–950 ramp

primary

#63BCFF

secondary

#F5DCC8

accent

#6300E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1318

muted

#7F8286

Preview Lab

Preview with #63BCFF

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

Preview Lab → · Contrast checker → · Palette generator →