#63D3ED#63D3ED

#63D3ED is a light, moderate cyan. Relative luminance 0.554; OKLCH L 81.1% C 0.108 H 215.3°. Best body text is #000000 at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#63D3ED
RGB	rgb(99, 211, 237)
HSL	hsl(191, 79%, 66%)
HSV	hsv(191, 58%, 93%)
CMYK	cmyk(58.2%, 11%, 0%, 7.1%)
CIE-LAB	lab(79.24, -24.56, -22.42)
CIE-LCH	lch(79.24, 33.26, 222.39°)
OKLab	oklab(81.14% -0.088 -0.0622)
OKLCH	oklch(81.14% 0.108 215.3)
XYZ	xyz(43.7198, 55.3513, 88.4842)
Luminance	0.5536 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D3ED #ED7D63

analogous

#63EDC2 #63D3ED #638EED

triadic

#63D3ED #ED63D3 #D3ED63

tetradic

#63D3ED #C263ED #ED7D63 #8EED63

square

#63D3ED #C263ED #ED7D63 #8EED63

split-complementary

#63D3ED #ED638E #EDC263

monochromatic

#16A0C0 #2CC4E7 #63D3ED #9AE2F3 #D1F2FA

Accessibility & contrast

On white

1.74

#63D3ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.07

#63D3ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D3ED

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D3ED	#FFFFFF	#000000	##000000
##63D3ED	1.00	1.74	12.07	12.07
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.07	21.00	1.00	1.00
##000000	12.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1CDEF

Deuteranopia (green-blind)

#ACBEED

Tritanopia (blue-blind)

#00DDDB

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #63d3ed;
/* rgb */ color: rgb(99, 211, 237);
/* oklch */ color: oklch(81.1% 0.108 215.3);

Tailwind

colors: {
  custom: {
    50: '#9be0f2',
    500: '#63d3ed',
    950: '#000000',
  },
}

SCSS

$custom: #63d3ed;
$custom-light: #9be0f2;
$custom-dark: #000000;

JSON

{
  "hex": "#63d3ed",
  "rgb": {
    "r": 99,
    "g": 211,
    "b": 237
  },
  "hsl": {
    "h": 191.304,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.81139,
    "c": 0.10774,
    "h": 215.3
  },
  "luminance": 0.55356
}

Semantic roles & 50–950 ramp

primary

#63D3ED

secondary

#BE5036

accent

#310ADC

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D3ED

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

Preview Lab → · Contrast checker → · Palette generator →