#63CFE9#63CFE9

#63CFE9 is a light, moderate cyan. Relative luminance 0.532; OKLCH L 80.1% C 0.105 H 215.9°. Best body text is #000000 at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#63CFE9
RGB	rgb(99, 207, 233)
HSL	hsl(192, 75%, 65%)
HSV	hsv(192, 58%, 91%)
CMYK	cmyk(57.5%, 11.2%, 0%, 8.6%)
CIE-LAB	lab(77.97, -23.71, -22.22)
CIE-LCH	lch(77.97, 32.50, 223.14°)
OKLab	oklab(80.07% -0.0853 -0.0616)
OKLCH	oklch(80.07% 0.105 215.9)
XYZ	xyz(42.1605, 53.1574, 85.1135)
Luminance	0.5316 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CFE9 #E97D63

analogous

#63E9C0 #63CFE9 #638CE9

triadic

#63CFE9 #E963CF #CFE963

tetradic

#63CFE9 #C063E9 #E97D63 #8CE963

square

#63CFE9 #C063E9 #E97D63 #8CE963

split-complementary

#63CFE9 #E9638C #E9C063

monochromatic

#1A99B8 #2DBEE1 #63CFE9 #99E0F1 #CEF0F8

Accessibility & contrast

On white

1.81

#63CFE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.63

#63CFE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CFE9

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CFE9	#FFFFFF	#000000	##000000
##63CFE9	1.00	1.81	11.63	11.63
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.63	21.00	1.00	1.00
##000000	11.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDC9EA

Deuteranopia (green-blind)

#A9BAE9

Tritanopia (blue-blind)

#00D9D7

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #63cfe9;
/* rgb */ color: rgb(99, 207, 233);
/* oklch */ color: oklch(80.1% 0.105 215.9);

Tailwind

colors: {
  custom: {
    50: '#9bdef0',
    500: '#63cfe9',
    950: '#000000',
  },
}

SCSS

$custom: #63cfe9;
$custom-light: #9bdef0;
$custom-dark: #000000;

JSON

{
  "hex": "#63cfe9",
  "rgb": {
    "r": 99,
    "g": 207,
    "b": 233
  },
  "hsl": {
    "h": 191.642,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.80072,
    "c": 0.10523,
    "h": 215.9
  },
  "luminance": 0.53161
}

Semantic roles & 50–950 ramp

primary

#63CFE9

secondary

#B75139

accent

#350ED7

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63CFE9

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

Preview Lab → · Contrast checker → · Palette generator →