#63D9F9#63D9F9

#63D9F9 is a very light, moderate cyan. Relative luminance 0.591; OKLCH L 83.0% C 0.114 H 218.4°. Best body text is #000000 at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#63D9F9
RGB	rgb(99, 217, 249)
HSL	hsl(193, 93%, 68%)
HSV	hsv(193, 60%, 98%)
CMYK	cmyk(60.2%, 12.9%, 0%, 2.4%)
CIE-LAB	lab(81.35, -24.10, -25.60)
CIE-LCH	lch(81.35, 35.16, 226.73°)
OKLab	oklab(82.97% -0.0896 -0.0712)
OKLCH	oklch(82.97% 0.114 218.4)
XYZ	xyz(47.0505, 59.1131, 98.5346)
Luminance	0.5912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D9F9 #F98363

analogous

#63F9CE #63D9F9 #638EF9

triadic

#63D9F9 #F963D9 #D9F963

tetradic

#63D9F9 #CE63F9 #F98363 #8EF963

square

#63D9F9 #CE63F9 #F98363 #8EF963

split-complementary

#63D9F9 #F9638E #F9CE63

monochromatic

#08ADD9 #28CBF7 #63D9F9 #9EE7FB #D9F6FE

Accessibility & contrast

On white

1.64

#63D9F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.82

#63D9F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D9F9

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D9F9	#FFFFFF	#000000	##000000
##63D9F9	1.00	1.64	12.82	12.82
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.82	21.00	1.00	1.00
##000000	12.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D3FB

Deuteranopia (green-blind)

#AFC3F9

Tritanopia (blue-blind)

#00E4E3

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #63d9f9;
/* rgb */ color: rgb(99, 217, 249);
/* oklch */ color: oklch(83.0% 0.114 218.4);

Tailwind

colors: {
  custom: {
    50: '#9de5fb',
    500: '#63d9f9',
    950: '#000000',
  },
}

SCSS

$custom: #63d9f9;
$custom-light: #9de5fb;
$custom-dark: #000000;

JSON

{
  "hex": "#63d9f9",
  "rgb": {
    "r": 99,
    "g": 217,
    "b": 249
  },
  "hsl": {
    "h": 192.8,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.82966,
    "c": 0.11445,
    "h": 218.4
  },
  "luminance": 0.59118
}

Semantic roles & 50–950 ramp

primary

#63D9F9

secondary

#D2512E

accent

#3100E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D9F9

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

Preview Lab → · Contrast checker → · Palette generator →