#63B6DD#63B6DD

#63B6DD is a light, moderate cyan. Relative luminance 0.413; OKLCH L 73.9% C 0.099 H 230.4°. Best body text is #000000 at 9.27:1 contrast (WCAG AA passes).

Color values

HEX#63B6DD
RGBrgb(99, 182, 221)
HSLhsl(199, 64%, 63%)
HSVhsv(199, 55%, 87%)
CMYKcmyk(55.2%, 17.6%, 0%, 13.3%)
CIE-LABlab(70.40, -14.32, -27.29)
CIE-LCHlch(70.40, 30.82, 242.31°)
OKLaboklab(73.89% -0.0628 -0.076)
OKLCHoklch(73.89% 0.099 230.4)
XYZxyz(34.9197, 41.3259, 74.5291)
Luminance0.4133 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63B6DD #DD8A63
analogous
#63DDC7 #63B6DD #6379DD
triadic
#63B6DD #DD63B6 #B6DD63
tetradic
#63B6DD #C763DD #DD8A63 #79DD63
square
#63B6DD #C763DD #DD8A63 #79DD63
split-complementary
#63B6DD #DD6379 #DDC763
monochromatic
#237AA2 #319ED2 #63B6DD #95CEE8 #C7E5F3

Accessibility & contrast

On white

2.27
#63B6DD on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.27
#63B6DD on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B6DD
9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63B6DD#FFFFFF#000000##000000
##63B6DD1.002.279.279.27
#FFFFFF2.271.0021.0021.00
#0000009.2721.001.001.00
##0000009.2721.001.001.00

Color blindness preview

Protanopia (red-blind)
#A2B4DF
Deuteranopia (green-blind)
#91A6DC
Tritanopia (blue-blind)
#00C1C3
Achromatopsia (no color)
#ACACAC

Design tokens & code

CSS
--color: #63b6dd;
/* rgb */ color: rgb(99, 182, 221);
/* oklch */ color: oklch(73.9% 0.099 230.4);
Tailwind
colors: {
  custom: {
    50: '#98cbe7',
    500: '#63b6dd',
    950: '#000000',
  },
}
SCSS
$custom: #63b6dd;
$custom-light: #98cbe7;
$custom-dark: #000000;
JSON
{
  "hex": "#63b6dd",
  "rgb": {
    "r": 99,
    "g": 182,
    "b": 221
  },
  "hsl": {
    "h": 199.18,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.7389,
    "c": 0.09855,
    "h": 230.4
  },
  "luminance": 0.41329
}

Semantic roles & 50–950 ramp

primary
#63B6DD
secondary
#E4C6B8
accent
#5319CC
background
#F9FCFE
surface
#F2F8FC
border
#CCD1D5
text
#0E1316
muted
#7E8284

Preview Lab

Preview with #63B6DD

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

Preview Lab → · Contrast checker → · Palette generator →

#63B6DD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva