#63BBE6#63BBE6

#63BBE6 is a light, moderate cyan. Relative luminance 0.439; OKLCH L 75.4% C 0.105 H 231.7°. Best body text is #000000 at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#63BBE6
RGB	rgb(99, 187, 230)
HSL	hsl(200, 72%, 65%)
HSV	hsv(200, 57%, 90%)
CMYK	cmyk(57%, 18.7%, 0%, 9.8%)
CIE-LAB	lab(72.16, -14.30, -29.48)
CIE-LCH	lch(72.16, 32.77, 244.13°)
OKLab	oklab(75.4% -0.065 -0.0822)
OKLCH	oklch(75.4% 0.105 231.7)
XYZ	xyz(37.1934, 43.9030, 81.3616)
Luminance	0.4391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBE6 #E68E63

analogous

#63E6D0 #63BBE6 #6379E6

triadic

#63BBE6 #E663BB #BBE663

tetradic

#63BBE6 #D063E6 #E68E63 #79E663

square

#63BBE6 #D063E6 #E68E63 #79E663

split-complementary

#63BBE6 #E66379 #E6D063

monochromatic

#1D81B2 #2EA4DE #63BBE6 #98D2EE #CCE9F7

Accessibility & contrast

On white

2.15

#63BBE6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.78

#63BBE6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBE6

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBE6	#FFFFFF	#000000	##000000
##63BBE6	1.00	2.15	9.78	9.78
#FFFFFF	2.15	1.00	21.00	21.00
#000000	9.78	21.00	1.00	1.00
##000000	9.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B9E8

Deuteranopia (green-blind)

#93ABE5

Tritanopia (blue-blind)

#00C7C9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63bbe6;
/* rgb */ color: rgb(99, 187, 230);
/* oklch */ color: oklch(75.4% 0.105 231.7);

Tailwind

colors: {
  custom: {
    50: '#99cfee',
    500: '#63bbe6',
    950: '#000000',
  },
}

SCSS

$custom: #63bbe6;
$custom-light: #99cfee;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbe6",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 230
  },
  "hsl": {
    "h": 199.695,
    "s": 72.376,
    "l": 64.51
  },
  "oklch": {
    "l": 0.75402,
    "c": 0.10483,
    "h": 231.7
  },
  "luminance": 0.43906
}

Semantic roles & 50–950 ramp

primary

#63BBE6

secondary

#E9CBBC

accent

#5111D4

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63BBE6

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

Preview Lab → · Contrast checker → · Palette generator →