#63DDF9#63DDF9

#63DDF9 is a very light, moderate cyan. Relative luminance 0.612; OKLCH L 83.9% C 0.115 H 215.3°. Best body text is #000000 at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#63DDF9
RGB	rgb(99, 221, 249)
HSL	hsl(191, 93%, 68%)
HSV	hsv(191, 60%, 98%)
CMYK	cmyk(60.2%, 11.2%, 0%, 2.4%)
CIE-LAB	lab(82.49, -26.08, -23.88)
CIE-LCH	lch(82.49, 35.36, 222.48°)
OKLab	oklab(83.87% -0.0937 -0.0663)
OKLCH	oklch(83.87% 0.115 215.3)
XYZ	xyz(48.0940, 61.2002, 98.8824)
Luminance	0.6120 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63DDF9 #F97F63

analogous

#63F9CA #63DDF9 #6392F9

triadic

#63DDF9 #F963DD #DDF963

tetradic

#63DDF9 #CA63F9 #F97F63 #92F963

square

#63DDF9 #CA63F9 #F97F63 #92F963

split-complementary

#63DDF9 #F96392 #F9CA63

monochromatic

#08B2D9 #28D0F7 #63DDF9 #9EEAFB #D9F7FE

Accessibility & contrast

On white

1.59

#63DDF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.24

#63DDF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63DDF9

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63DDF9	#FFFFFF	#000000	##000000
##63DDF9	1.00	1.59	13.24	13.24
#FFFFFF	1.59	1.00	21.00	21.00
#000000	13.24	21.00	1.00	1.00
##000000	13.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C9D7FB

Deuteranopia (green-blind)

#B3C6F9

Tritanopia (blue-blind)

#00E8E6

Achromatopsia (no color)

#CDCDCD

Design tokens & code

CSS

--color: #63ddf9;
/* rgb */ color: rgb(99, 221, 249);
/* oklch */ color: oklch(83.9% 0.115 215.3);

Tailwind

colors: {
  custom: {
    50: '#9de7fb',
    500: '#63ddf9',
    950: '#000000',
  },
}

SCSS

$custom: #63ddf9;
$custom-light: #9de7fb;
$custom-dark: #000000;

JSON

{
  "hex": "#63ddf9",
  "rgb": {
    "r": 99,
    "g": 221,
    "b": 249
  },
  "hsl": {
    "h": 191.2,
    "s": 92.593,
    "l": 68.235
  },
  "oklch": {
    "l": 0.83874,
    "c": 0.11481,
    "h": 215.3
  },
  "luminance": 0.61205
}

Semantic roles & 50–950 ramp

primary

#63DDF9

secondary

#D24D2E

accent

#2B00E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#101617

muted

#808485

Preview Lab

Preview with #63DDF9

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

Preview Lab → · Contrast checker → · Palette generator →