#63CFEB#63CFEB

#63CFEB is a light, moderate cyan. Relative luminance 0.533; OKLCH L 80.1% C 0.106 H 217.3°. Best body text is #000000 at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#63CFEB
RGB	rgb(99, 207, 235)
HSL	hsl(192, 77%, 65%)
HSV	hsv(192, 58%, 92%)
CMYK	cmyk(57.9%, 11.9%, 0%, 7.8%)
CIE-LAB	lab(78.04, -23.14, -23.19)
CIE-LCH	lch(78.04, 32.76, 225.07°)
OKLab	oklab(80.15% -0.0845 -0.0644)
OKLCH	oklch(80.15% 0.106 217.3)
XYZ	xyz(42.4478, 53.2723, 86.6267)
Luminance	0.5328 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CFEB #EB7F63

analogous

#63EBC3 #63CFEB #638BEB

triadic

#63CFEB #EB63CF #CFEB63

tetradic

#63CFEB #C363EB #EB7F63 #8BEB63

square

#63CFEB #C363EB #EB7F63 #8BEB63

split-complementary

#63CFEB #EB638B #EBC363

monochromatic

#189ABC #2DBEE4 #63CFEB #99E0F2 #CFF0F9

Accessibility & contrast

On white

1.80

#63CFEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.66

#63CFEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CFEB

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CFEB	#FFFFFF	#000000	##000000
##63CFEB	1.00	1.80	11.66	11.66
#FFFFFF	1.80	1.00	21.00	21.00
#000000	11.66	21.00	1.00	1.00
##000000	11.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCC9ED

Deuteranopia (green-blind)

#A8BAEB

Tritanopia (blue-blind)

#00D9D8

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #63cfeb;
/* rgb */ color: rgb(99, 207, 235);
/* oklch */ color: oklch(80.1% 0.106 217.3);

Tailwind

colors: {
  custom: {
    50: '#9bddf1',
    500: '#63cfeb',
    950: '#000000',
  },
}

SCSS

$custom: #63cfeb;
$custom-light: #9bddf1;
$custom-dark: #000000;

JSON

{
  "hex": "#63cfeb",
  "rgb": {
    "r": 99,
    "g": 207,
    "b": 235
  },
  "hsl": {
    "h": 192.353,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.80149,
    "c": 0.10625,
    "h": 217.3
  },
  "luminance": 0.53276
}

Semantic roles & 50–950 ramp

primary

#63CFEB

secondary

#BB5338

accent

#360CDA

background

#FCFEFF

surface

#F5FCFE

border

#CFD5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63CFEB

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

Preview Lab → · Contrast checker → · Palette generator →