#63BBF6#63BBF6

#63BBF6 is a light, vivid cyan. Relative luminance 0.448; OKLCH L 76.1% C 0.120 H 240.2°. Best body text is #000000 at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#63BBF6
RGB	rgb(99, 187, 246)
HSL	hsl(204, 89%, 68%)
HSV	hsv(204, 60%, 96%)
CMYK	cmyk(59.8%, 24%, 0%, 3.5%)
CIE-LAB	lab(72.79, -9.44, -37.18)
CIE-LCH	lch(72.79, 38.36, 255.75°)
OKLab	oklab(76.1% -0.0596 -0.1043)
OKLCH	oklch(76.1% 0.12 240.2)
XYZ	xyz(39.5442, 44.8433, 93.7426)
Luminance	0.4485 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBF6 #F69E63

analogous

#63F6E8 #63BBF6 #6371F6

triadic

#63BBF6 #F663BB #BBF663

tetradic

#63BBF6 #E863F6 #F69E63 #71F663

square

#63BBF6 #E863F6 #F69E63 #71F663

split-complementary

#63BBF6 #F66371 #F6E863

monochromatic

#0C83D2 #29A2F3 #63BBF6 #9DD4F9 #D7EDFD

Accessibility & contrast

On white

2.11

#63BBF6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.97

#63BBF6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBF6

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBF6	#FFFFFF	#000000	##000000
##63BBF6	1.00	2.11	9.97	9.97
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.97	21.00	1.00	1.00
##000000	9.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0BBF9

Deuteranopia (green-blind)

#8CACF5

Tritanopia (blue-blind)

#00CACF

Achromatopsia (no color)

#B3B3B3

Design tokens & code

CSS

--color: #63bbf6;
/* rgb */ color: rgb(99, 187, 246);
/* oklch */ color: oklch(76.1% 0.120 240.2);

Tailwind

colors: {
  custom: {
    50: '#9bcff9',
    500: '#63bbf6',
    950: '#000000',
  },
}

SCSS

$custom: #63bbf6;
$custom-light: #9bcff9;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbf6",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 246
  },
  "hsl": {
    "h": 204.082,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.76104,
    "c": 0.12014,
    "h": 240.2
  },
  "luminance": 0.44847
}

Semantic roles & 50–950 ramp

primary

#63BBF6

secondary

#F1D6C4

accent

#5C00E6

background

#FAFCFF

surface

#F4F9FF

border

#CED2D7

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63BBF6

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

Preview Lab → · Contrast checker → · Palette generator →