#63BBF8#63BBF8

#63BBF8 is a light, vivid cyan. Relative luminance 0.450; OKLCH L 76.2% C 0.122 H 241.1°. Best body text is #000000 at 9.99:1 contrast (WCAG AA passes).

Color values

HEX	#63BBF8
RGB	rgb(99, 187, 248)
HSL	hsl(205, 91%, 68%)
HSV	hsv(205, 60%, 97%)
CMYK	cmyk(60.1%, 24.6%, 0%, 2.7%)
CIE-LAB	lab(72.87, -8.83, -38.13)
CIE-LCH	lch(72.87, 39.14, 256.97°)
OKLab	oklab(76.2% -0.059 -0.107)
OKLCH	oklch(76.2% 0.122 241.1)
XYZ	xyz(39.8528, 44.9668, 95.3680)
Luminance	0.4497 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBF8 #F8A063

analogous

#63F8EB #63BBF8 #6370F8

triadic

#63BBF8 #F863BB #BBF863

tetradic

#63BBF8 #EB63F8 #F8A063 #70F863

square

#63BBF8 #EB63F8 #F8A063 #70F863

split-complementary

#63BBF8 #F86370 #F8EB63

monochromatic

#0A83D7 #28A1F5 #63BBF8 #9ED5FB #D8EEFD

Accessibility & contrast

On white

2.10

#63BBF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.99

#63BBF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBF8

9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBF8	#FFFFFF	#000000	##000000
##63BBF8	1.00	2.10	9.99	9.99
#FFFFFF	2.10	1.00	21.00	21.00
#000000	9.99	21.00	1.00	1.00
##000000	9.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0BBFB

Deuteranopia (green-blind)

#8BACF7

Tritanopia (blue-blind)

#00CAD0

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #63bbf8;
/* rgb */ color: rgb(99, 187, 248);
/* oklch */ color: oklch(76.2% 0.122 241.1);

Tailwind

colors: {
  custom: {
    50: '#9bcffa',
    500: '#63bbf8',
    950: '#000000',
  },
}

SCSS

$custom: #63bbf8;
$custom-light: #9bcffa;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbf8",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 248
  },
  "hsl": {
    "h": 204.564,
    "s": 91.411,
    "l": 68.039
  },
  "oklch": {
    "l": 0.76195,
    "c": 0.12221,
    "h": 241.1
  },
  "luminance": 0.44971
}

Semantic roles & 50–950 ramp

primary

#63BBF8

secondary

#F2D7C5

accent

#5E00E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63BBF8

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

Preview Lab → · Contrast checker → · Palette generator →