#63D5F0#63D5F0

#63D5F0 is a light, moderate cyan. Relative luminance 0.565; OKLCH L 81.7% C 0.109 H 215.7°. Best body text is #000000 at 12.31:1 contrast (WCAG AA passes).

Color values

HEX	#63D5F0
RGB	rgb(99, 213, 240)
HSL	hsl(191, 82%, 66%)
HSV	hsv(191, 59%, 94%)
CMYK	cmyk(58.8%, 11.2%, 0%, 5.9%)
CIE-LAB	lab(79.91, -24.70, -23.01)
CIE-LCH	lch(79.91, 33.76, 222.97°)
OKLab	oklab(81.71% -0.0889 -0.0638)
OKLCH	oklch(81.71% 0.109 215.7)
XYZ	xyz(44.6617, 56.5280, 90.9785)
Luminance	0.5653 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D5F0 #F07E63

analogous

#63F0C4 #63D5F0 #638FF0

triadic

#63D5F0 #F063D5 #D5F063

tetradic

#63D5F0 #C463F0 #F07E63 #8FF063

square

#63D5F0 #C463F0 #F07E63 #8FF063

split-complementary

#63D5F0 #F0638F #F0C463

monochromatic

#13A3C6 #2BC6EB #63D5F0 #9BE4F5 #D3F3FB

Accessibility & contrast

On white

1.71

#63D5F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.31

#63D5F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D5F0

12.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D5F0	#FFFFFF	#000000	##000000
##63D5F0	1.00	1.71	12.31	12.31
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.31	21.00	1.00	1.00
##000000	12.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2CFF2

Deuteranopia (green-blind)

#ADBFF0

Tritanopia (blue-blind)

#00DFDD

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #63d5f0;
/* rgb */ color: rgb(99, 213, 240);
/* oklch */ color: oklch(81.7% 0.109 215.7);

Tailwind

colors: {
  custom: {
    50: '#9ce2f5',
    500: '#63d5f0',
    950: '#000000',
  },
}

SCSS

$custom: #63d5f0;
$custom-light: #9ce2f5;
$custom-dark: #000000;

JSON

{
  "hex": "#63d5f0",
  "rgb": {
    "r": 99,
    "g": 213,
    "b": 240
  },
  "hsl": {
    "h": 191.489,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.8171,
    "c": 0.10946,
    "h": 215.7
  },
  "luminance": 0.56532
}

Semantic roles & 50–950 ramp

primary

#63D5F0

secondary

#C35034

accent

#3007DF

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D5F0

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

Preview Lab → · Contrast checker → · Palette generator →