#63CEE9#63CEE9

#63CEE9 is a light, moderate cyan. Relative luminance 0.527; OKLCH L 79.8% C 0.105 H 216.7°. Best body text is #000000 at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#63CEE9
RGB	rgb(99, 206, 233)
HSL	hsl(192, 75%, 65%)
HSV	hsv(192, 58%, 91%)
CMYK	cmyk(57.5%, 11.6%, 0%, 8.6%)
CIE-LAB	lab(77.68, -23.21, -22.66)
CIE-LCH	lch(77.68, 32.44, 224.31°)
OKLab	oklab(79.84% -0.0842 -0.0629)
OKLCH	oklch(79.84% 0.105 216.7)
XYZ	xyz(41.9190, 52.6744, 85.0330)
Luminance	0.5268 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CEE9 #E97E63

analogous

#63E9C1 #63CEE9 #638BE9

triadic

#63CEE9 #E963CE #CEE963

tetradic

#63CEE9 #C163E9 #E97E63 #8BE963

square

#63CEE9 #C163E9 #E97E63 #8BE963

split-complementary

#63CEE9 #E9638B #E9C163

monochromatic

#1A98B8 #2DBDE1 #63CEE9 #99DFF1 #CEF0F8

Accessibility & contrast

On white

1.82

#63CEE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.54

#63CEE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CEE9

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CEE9	#FFFFFF	#000000	##000000
##63CEE9	1.00	1.82	11.54	11.54
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.54	21.00	1.00	1.00
##000000	11.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCC8EB

Deuteranopia (green-blind)

#A8BAE9

Tritanopia (blue-blind)

#00D8D6

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #63cee9;
/* rgb */ color: rgb(99, 206, 233);
/* oklch */ color: oklch(79.8% 0.105 216.7);

Tailwind

colors: {
  custom: {
    50: '#9bddf0',
    500: '#63cee9',
    950: '#000000',
  },
}

SCSS

$custom: #63cee9;
$custom-light: #9bddf0;
$custom-dark: #000000;

JSON

{
  "hex": "#63cee9",
  "rgb": {
    "r": 99,
    "g": 206,
    "b": 233
  },
  "hsl": {
    "h": 192.09,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.79843,
    "c": 0.10511,
    "h": 216.7
  },
  "luminance": 0.52678
}

Semantic roles & 50–950 ramp

primary

#63CEE9

secondary

#B75239

accent

#370ED7

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63CEE9

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

Preview Lab → · Contrast checker → · Palette generator →