#63CEFD#63CEFD

#63CEFD is a light, moderate cyan. Relative luminance 0.539; OKLCH L 80.6% C 0.118 H 229.5°. Best body text is #000000 at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#63CEFD
RGB	rgb(99, 206, 253)
HSL	hsl(198, 97%, 69%)
HSV	hsv(198, 61%, 99%)
CMYK	cmyk(60.9%, 18.6%, 0%, 0.8%)
CIE-LAB	lab(78.39, -17.34, -32.27)
CIE-LCH	lch(78.39, 36.63, 241.74°)
OKLab	oklab(80.65% -0.0769 -0.0901)
OKLCH	oklch(80.65% 0.118 229.5)
XYZ	xyz(44.9396, 53.8826, 100.9415)
Luminance	0.5389 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CEFD #FD9263

analogous

#63FDDF #63CEFD #6381FD

triadic

#63CEFD #FD63CE #CEFD63

tetradic

#63CEFD #DF63FD #FD9263 #81FD63

square

#63CEFD #DF63FD #FD9263 #81FD63

split-complementary

#63CEFD #FD6381 #FDDF63

monochromatic

#039EE3 #27BBFC #63CEFD #9FE1FE #DCF4FF

Accessibility & contrast

On white

1.78

#63CEFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.78

#63CEFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CEFD

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CEFD	#FFFFFF	#000000	##000000
##63CEFD	1.00	1.78	11.78	11.78
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.78	21.00	1.00	1.00
##000000	11.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6CBFF

Deuteranopia (green-blind)

#A0BBFC

Tritanopia (blue-blind)

#00DBDD

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #63cefd;
/* rgb */ color: rgb(99, 206, 253);
/* oklch */ color: oklch(80.6% 0.118 229.5);

Tailwind

colors: {
  custom: {
    50: '#9cddfe',
    500: '#63cefd',
    950: '#000000',
  },
}

SCSS

$custom: #63cefd;
$custom-light: #9cddfe;
$custom-dark: #000000;

JSON

{
  "hex": "#63cefd",
  "rgb": {
    "r": 99,
    "g": 206,
    "b": 253
  },
  "hsl": {
    "h": 198.312,
    "s": 97.468,
    "l": 69.02
  },
  "oklch": {
    "l": 0.80647,
    "c": 0.11848,
    "h": 229.5
  },
  "luminance": 0.53887
}

Semantic roles & 50–950 ramp

primary

#63CEFD

secondary

#D7612D

accent

#4600E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CEFD

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

Preview Lab → · Contrast checker → · Palette generator →