#63CDF3#63CDF3

#63CDF3 is a light, moderate cyan. Relative luminance 0.528; OKLCH L 80.0% C 0.111 H 224.4°. Best body text is #000000 at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#63CDF3
RGB	rgb(99, 205, 243)
HSL	hsl(196, 86%, 67%)
HSV	hsv(196, 59%, 95%)
CMYK	cmyk(59.3%, 15.6%, 0%, 4.7%)
CIE-LAB	lab(77.75, -19.80, -27.92)
CIE-LCH	lch(77.75, 34.23, 234.65°)
OKLab	oklab(80.01% -0.0795 -0.0777)
OKLCH	oklch(80.01% 0.111 224.4)
XYZ	xyz(43.1482, 52.7821, 92.6907)
Luminance	0.5279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CDF3 #F38963

analogous

#63F3D1 #63CDF3 #6385F3

triadic

#63CDF3 #F363CD #CDF363

tetradic

#63CDF3 #D163F3 #F38963 #85F363

square

#63CDF3 #D163F3 #F38963 #85F363

split-complementary

#63CDF3 #F36385 #F3D163

monochromatic

#109ACC #2ABBEF #63CDF3 #9CDFF7 #D5F1FC

Accessibility & contrast

On white

1.82

#63CDF3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.56

#63CDF3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CDF3

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CDF3	#FFFFFF	#000000	##000000
##63CDF3	1.00	1.82	11.56	11.56
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.56	21.00	1.00	1.00
##000000	11.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C9F5

Deuteranopia (green-blind)

#A3B9F3

Tritanopia (blue-blind)

#00D9D9

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #63cdf3;
/* rgb */ color: rgb(99, 205, 243);
/* oklch */ color: oklch(80.0% 0.111 224.4);

Tailwind

colors: {
  custom: {
    50: '#9bdcf7',
    500: '#63cdf3',
    950: '#000000',
  },
}

SCSS

$custom: #63cdf3;
$custom-light: #9bdcf7;
$custom-dark: #000000;

JSON

{
  "hex": "#63cdf3",
  "rgb": {
    "r": 99,
    "g": 205,
    "b": 243
  },
  "hsl": {
    "h": 195.833,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.8001,
    "c": 0.11116,
    "h": 224.4
  },
  "luminance": 0.52786
}

Semantic roles & 50–950 ramp

primary

#63CDF3

secondary

#C85A32

accent

#3E03E2

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CDF3

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

Preview Lab → · Contrast checker → · Palette generator →