#63CCEF#63CCEF

#63CCEF is a light, moderate cyan. Relative luminance 0.521; OKLCH L 79.6% C 0.109 H 222.6°. Best body text is #000000 at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#63CCEF
RGB	rgb(99, 204, 239)
HSL	hsl(195, 81%, 66%)
HSV	hsv(195, 59%, 94%)
CMYK	cmyk(58.6%, 14.6%, 0%, 6.3%)
CIE-LAB	lab(77.32, -20.46, -26.43)
CIE-LCH	lch(77.32, 33.42, 232.25°)
OKLab	oklab(79.62% -0.0799 -0.0735)
OKLCH	oklch(79.62% 0.109 222.6)
XYZ	xyz(42.3123, 52.0662, 89.4646)
Luminance	0.5207 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CCEF #EF8663

analogous

#63EFCC #63CCEF #6386EF

triadic

#63CCEF #EF63CC #CCEF63

tetradic

#63CCEF #CC63EF #EF8663 #86EF63

square

#63CCEF #CC63EF #EF8663 #86EF63

split-complementary

#63CCEF #EF6386 #EFCC63

monochromatic

#1498C4 #2BBAE9 #63CCEF #9BDEF5 #D2F0FA

Accessibility & contrast

On white

1.84

#63CCEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.41

#63CCEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CCEF

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CCEF	#FFFFFF	#000000	##000000
##63CCEF	1.00	1.84	11.41	11.41
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.41	21.00	1.00	1.00
##000000	11.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8C8F1

Deuteranopia (green-blind)

#A4B8EF

Tritanopia (blue-blind)

#00D7D7

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #63ccef;
/* rgb */ color: rgb(99, 204, 239);
/* oklch */ color: oklch(79.6% 0.109 222.6);

Tailwind

colors: {
  custom: {
    50: '#9bdbf4',
    500: '#63ccef',
    950: '#000000',
  },
}

SCSS

$custom: #63ccef;
$custom-light: #9bdbf4;
$custom-dark: #000000;

JSON

{
  "hex": "#63ccef",
  "rgb": {
    "r": 99,
    "g": 204,
    "b": 239
  },
  "hsl": {
    "h": 195,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.79623,
    "c": 0.10856,
    "h": 222.6
  },
  "luminance": 0.5207
}

Semantic roles & 50–950 ramp

primary

#63CCEF

secondary

#C15835

accent

#3D08DE

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CCEF

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

Preview Lab → · Contrast checker → · Palette generator →