#63BBE0#63BBE0

#63BBE0 is a light, moderate cyan. Relative luminance 0.436; OKLCH L 75.2% C 0.100 H 227.7°. Best body text is #000000 at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#63BBE0
RGB	rgb(99, 187, 224)
HSL	hsl(198, 67%, 63%)
HSV	hsv(198, 56%, 88%)
CMYK	cmyk(55.8%, 16.5%, 0%, 12.2%)
CIE-LAB	lab(71.94, -16.07, -26.56)
CIE-LCH	lch(71.94, 31.05, 238.82°)
OKLab	oklab(75.15% -0.0672 -0.0739)
OKLCH	oklch(75.15% 0.1 227.7)
XYZ	xyz(36.3653, 43.5718, 77.0003)
Luminance	0.4358 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBE0 #E08863

analogous

#63E0C6 #63BBE0 #637CE0

triadic

#63BBE0 #E063BB #BBE063

tetradic

#63BBE0 #C663E0 #E08863 #7CE063

square

#63BBE0 #C663E0 #E08863 #7CE063

split-complementary

#63BBE0 #E0637C #E0C663

monochromatic

#2180A7 #30A5D6 #63BBE0 #96D1EA #C9E8F4

Accessibility & contrast

On white

2.16

#63BBE0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.72

#63BBE0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBE0

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBE0	#FFFFFF	#000000	##000000
##63BBE0	1.00	2.16	9.72	9.72
#FFFFFF	2.16	1.00	21.00	21.00
#000000	9.72	21.00	1.00	1.00
##000000	9.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8B8E2

Deuteranopia (green-blind)

#96AAE0

Tritanopia (blue-blind)

#00C6C7

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #63bbe0;
/* rgb */ color: rgb(99, 187, 224);
/* oklch */ color: oklch(75.2% 0.100 227.7);

Tailwind

colors: {
  custom: {
    50: '#99cfe9',
    500: '#63bbe0',
    950: '#000000',
  },
}

SCSS

$custom: #63bbe0;
$custom-light: #99cfe9;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbe0",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 224
  },
  "hsl": {
    "h": 197.76,
    "s": 66.845,
    "l": 63.333
  },
  "oklch": {
    "l": 0.75151,
    "c": 0.09988,
    "h": 227.7
  },
  "luminance": 0.43575
}

Semantic roles & 50–950 ramp

primary

#63BBE0

secondary

#E6C6B9

accent

#4D17CF

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0F1316

muted

#7E8284

Preview Lab

Preview with #63BBE0

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

Preview Lab → · Contrast checker → · Palette generator →