#63A3CC#63A3CC

#63A3CC is a light, moderate cyan. Relative luminance 0.332; OKLCH L 68.9% C 0.089 H 238.1°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX#63A3CC
RGBrgb(99, 163, 204)
HSLhsl(203, 51%, 59%)
HSVhsv(203, 51%, 80%)
CMYKcmyk(51.5%, 20.1%, 0%, 20%)
CIE-LABlab(64.33, -9.09, -27.27)
CIE-LCHlch(64.33, 28.74, 251.56°)
OKLaboklab(68.85% -0.0473 -0.0759)
OKLCHoklch(68.85% 0.089 238.1)
XYZxyz(29.1379, 33.2043, 61.9886)
Luminance0.3321 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A3CC #CC8C63
analogous
#63CCC1 #63A3CC #636ECC
triadic
#63A3CC #CC63A3 #A3CC63
tetradic
#63A3CC #C163CC #CC8C63 #6ECC63
square
#63A3CC #C163CC #CC8C63 #6ECC63
split-complementary
#63A3CC #CC636E #CCC163
monochromatic
#2C6488 #3C86B6 #63A3CC #91BEDB #BFD9EA

Accessibility & contrast

On white

2.75
#63A3CC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.64
#63A3CC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A3CC
7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A3CC#FFFFFF#000000##000000
##63A3CC1.002.757.647.64
#FFFFFF2.751.0021.0021.00
#0000007.6421.001.001.00
##0000007.6421.001.001.00

Color blindness preview

Protanopia (red-blind)
#90A2CE
Deuteranopia (green-blind)
#8297CB
Tritanopia (blue-blind)
#27ADB1
Achromatopsia (no color)
#9C9C9C

Design tokens & code

CSS
--color: #63a3cc;
/* rgb */ color: rgb(99, 163, 204);
/* oklch */ color: oklch(68.9% 0.089 238.1);
Tailwind
colors: {
  custom: {
    50: '#96bedb',
    500: '#63a3cc',
    950: '#000000',
  },
}
SCSS
$custom: #63a3cc;
$custom-light: #96bedb;
$custom-dark: #000000;
JSON
{
  "hex": "#63a3cc",
  "rgb": {
    "r": 99,
    "g": 163,
    "b": 204
  },
  "hsl": {
    "h": 203.429,
    "s": 50.725,
    "l": 59.412
  },
  "oklch": {
    "l": 0.68852,
    "c": 0.08947,
    "h": 238.1
  },
  "luminance": 0.33207
}

Semantic roles & 50–950 ramp

primary
#63A3CC
secondary
#DAC1B1
accent
#844EDA
background
#F9FBFD
surface
#F2F6FB
border
#CCD0D4
text
#0E1215
muted
#7E8183

Preview Lab

Preview with #63A3CC

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

Preview Lab → · Contrast checker → · Palette generator →

#63A3CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva