#63BBF5#63BBF5

#63BBF5 is a light, moderate cyan. Relative luminance 0.448; OKLCH L 76.1% C 0.119 H 239.8°. Best body text is #000000 at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#63BBF5
RGB	rgb(99, 187, 245)
HSL	hsl(204, 88%, 67%)
HSV	hsv(204, 60%, 96%)
CMYK	cmyk(59.6%, 23.7%, 0%, 3.9%)
CIE-LAB	lab(72.75, -9.75, -36.70)
CIE-LCH	lch(72.75, 37.98, 255.12°)
OKLab	oklab(76.06% -0.06 -0.1029)
OKLCH	oklch(76.06% 0.119 239.8)
XYZ	xyz(39.3912, 44.7821, 92.9364)
Luminance	0.4479 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBF5 #F59D63

analogous

#63F5E6 #63BBF5 #6372F5

triadic

#63BBF5 #F563BB #BBF563

tetradic

#63BBF5 #E663F5 #F59D63 #72F563

square

#63BBF5 #E663F5 #F59D63 #72F563

split-complementary

#63BBF5 #F56372 #F5E663

monochromatic

#0D83D0 #29A2F1 #63BBF5 #9DD4F9 #D6EDFC

Accessibility & contrast

On white

2.11

#63BBF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.96

#63BBF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBF5

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBF5	#FFFFFF	#000000	##000000
##63BBF5	1.00	2.11	9.96	9.96
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.96	21.00	1.00	1.00
##000000	9.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1BBF8

Deuteranopia (green-blind)

#8DACF4

Tritanopia (blue-blind)

#00CACF

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #63bbf5;
/* rgb */ color: rgb(99, 187, 245);
/* oklch */ color: oklch(76.1% 0.119 239.8);

Tailwind

colors: {
  custom: {
    50: '#9bcff8',
    500: '#63bbf5',
    950: '#000000',
  },
}

SCSS

$custom: #63bbf5;
$custom-light: #9bcff8;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbf5",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 245
  },
  "hsl": {
    "h": 203.836,
    "s": 87.952,
    "l": 67.451
  },
  "oklch": {
    "l": 0.76059,
    "c": 0.1191,
    "h": 239.8
  },
  "luminance": 0.44786
}

Semantic roles & 50–950 ramp

primary

#63BBF5

secondary

#F1D5C3

accent

#5B01E5

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63BBF5

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

Preview Lab → · Contrast checker → · Palette generator →