#63ABCB#63ABCB

#63ABCB is a light, moderate cyan. Relative luminance 0.361; OKLCH L 70.6% C 0.086 H 228.6°. Best body text is #000000 at 8.22:1 contrast (WCAG AA passes).

Color values

HEX#63ABCB
RGBrgb(99, 171, 203)
HSLhsl(198, 50%, 59%)
HSVhsv(198, 51%, 80%)
CMYKcmyk(51.2%, 15.8%, 0%, 20.4%)
CIE-LABlab(66.59, -13.72, -23.24)
CIE-LCHlch(66.59, 26.99, 239.44°)
OKLaboklab(70.63% -0.0569 -0.0645)
OKLCHoklch(70.63% 0.086 228.6)
XYZxyz(30.4840, 36.0877, 61.8475)
Luminance0.3609 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63ABCB #CB8363
analogous
#63CBB7 #63ABCB #6377CB
triadic
#63ABCB #CB63AB #ABCB63
tetradic
#63ABCB #B763CB #CB8363 #77CB63
square
#63ABCB #B763CB #CB8363 #77CB63
split-complementary
#63ABCB #CB6377 #CBB763
monochromatic
#2D6B87 #3C90B5 #63ABCB #91C4DA #BFDCEA

Accessibility & contrast

On white

2.56
#63ABCB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.22
#63ABCB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ABCB
8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63ABCB#FFFFFF#000000##000000
##63ABCB1.002.568.228.22
#FFFFFF2.561.0021.0021.00
#0000008.2221.001.001.00
##0000008.2221.001.001.00

Color blindness preview

Protanopia (red-blind)
#9AA8CD
Deuteranopia (green-blind)
#8B9DCB
Tritanopia (blue-blind)
#25B4B5
Achromatopsia (no color)
#A2A2A2

Design tokens & code

CSS
--color: #63abcb;
/* rgb */ color: rgb(99, 171, 203);
/* oklch */ color: oklch(70.6% 0.086 228.6);
Tailwind
colors: {
  custom: {
    50: '#96c4db',
    500: '#63abcb',
    950: '#000000',
  },
}
SCSS
$custom: #63abcb;
$custom-light: #96c4db;
$custom-dark: #000000;
JSON
{
  "hex": "#63abcb",
  "rgb": {
    "r": 99,
    "g": 171,
    "b": 203
  },
  "hsl": {
    "h": 198.462,
    "s": 50,
    "l": 59.216
  },
  "oklch": {
    "l": 0.70634,
    "c": 0.08603,
    "h": 228.6
  },
  "luminance": 0.3609
}

Semantic roles & 50–950 ramp

primary
#63ABCB
secondary
#D9BDB1
accent
#794EDA
background
#F9FCFD
surface
#F2F8FA
border
#CCD1D3
text
#0E1215
muted
#7E8183

Preview Lab

Preview with #63ABCB

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

Preview Lab → · Contrast checker → · Palette generator →

#63ABCB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva