#63CBF6#63CBF6

#63CBF6 is a light, moderate cyan. Relative luminance 0.520; OKLCH L 79.7% C 0.114 H 227.9°. Best body text is #000000 at 11.40:1 contrast (WCAG AA passes).

Color values

HEX	#63CBF6
RGB	rgb(99, 203, 246)
HSL	hsl(198, 89%, 68%)
HSV	hsv(198, 60%, 96%)
CMYK	cmyk(59.8%, 17.5%, 0%, 3.5%)
CIE-LAB	lab(77.29, -17.89, -30.23)
CIE-LCH	lch(77.29, 35.12, 239.38°)
OKLab	oklab(79.68% -0.0763 -0.0843)
OKLCH	oklch(79.68% 0.114 227.9)
XYZ	xyz(43.1296, 52.0141, 94.9377)
Luminance	0.5202 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CBF6 #F68E63

analogous

#63F6D7 #63CBF6 #6381F6

triadic

#63CBF6 #F663CB #CBF663

tetradic

#63CBF6 #D763F6 #F68E63 #81F663

square

#63CBF6 #D763F6 #F68E63 #81F663

split-complementary

#63CBF6 #F66381 #F6D763

monochromatic

#0C98D2 #29B8F3 #63CBF6 #9DDEF9 #D7F2FD

Accessibility & contrast

On white

1.84

#63CBF6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.40

#63CBF6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CBF6

11.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CBF6	#FFFFFF	#000000	##000000
##63CBF6	1.00	1.84	11.40	11.40
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.40	21.00	1.00	1.00
##000000	11.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C8F8

Deuteranopia (green-blind)

#A0B8F5

Tritanopia (blue-blind)

#00D7D9

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #63cbf6;
/* rgb */ color: rgb(99, 203, 246);
/* oklch */ color: oklch(79.7% 0.114 227.9);

Tailwind

colors: {
  custom: {
    50: '#9cdbf9',
    500: '#63cbf6',
    950: '#000000',
  },
}

SCSS

$custom: #63cbf6;
$custom-light: #9cdbf9;
$custom-dark: #000000;

JSON

{
  "hex": "#63cbf6",
  "rgb": {
    "r": 99,
    "g": 203,
    "b": 246
  },
  "hsl": {
    "h": 197.551,
    "s": 89.091,
    "l": 67.647
  },
  "oklch": {
    "l": 0.79681,
    "c": 0.1137,
    "h": 227.9
  },
  "luminance": 0.52018
}

Semantic roles & 50–950 ramp

primary

#63CBF6

secondary

#CE5E30

accent

#4300E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CBF6

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

Preview Lab → · Contrast checker → · Palette generator →