#63A8ED#63A8ED

#63A8ED is a light, vivid cyan. Relative luminance 0.368; OKLCH L 71.5% C 0.123 H 249.9°. Best body text is #000000 at 8.35:1 contrast (WCAG AA passes).

Color values

HEX#63A8ED
RGBrgb(99, 168, 237)
HSLhsl(210, 79%, 66%)
HSVhsv(210, 58%, 93%)
CMYKcmyk(58.2%, 29.1%, 0%, 7.1%)
CIE-LABlab(67.10, -1.78, -41.15)
CIE-LCHlch(67.10, 41.19, 267.52°)
OKLaboklab(71.49% -0.0423 -0.1159)
OKLCHoklch(71.49% 0.123 249.9)
XYZxyz(34.4288, 36.7693, 85.3872)
Luminance0.3677 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A8ED #EDA863
analogous
#63EDED #63A8ED #6363ED
triadic
#63A8ED #ED63A8 #A8ED63
tetradic
#63A8ED #ED63ED #EDA863 #63ED63
square
#63A8ED #ED63ED #EDA863 #63ED63
split-complementary
#63A8ED #ED6363 #EDED63
monochromatic
#166BC0 #2C89E7 #63A8ED #9AC7F3 #D1E5FA

Accessibility & contrast

On white

2.51
#63A8ED on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.35
#63A8ED on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A8ED
8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A8ED#FFFFFF#000000##000000
##63A8ED1.002.518.358.35
#FFFFFF2.511.0021.0021.00
#0000008.3521.001.001.00
##0000008.3521.001.001.00

Color blindness preview

Protanopia (red-blind)
#8BABF0
Deuteranopia (green-blind)
#799DEC
Tritanopia (blue-blind)
#00B8C0
Achromatopsia (no color)
#A3A3A3

Design tokens & code

CSS
--color: #63a8ed;
/* rgb */ color: rgb(99, 168, 237);
/* oklch */ color: oklch(71.5% 0.123 249.9);
Tailwind
colors: {
  custom: {
    50: '#99c1f3',
    500: '#63a8ed',
    950: '#000000',
  },
}
SCSS
$custom: #63a8ed;
$custom-light: #99c1f3;
$custom-dark: #000000;
JSON
{
  "hex": "#63a8ed",
  "rgb": {
    "r": 99,
    "g": 168,
    "b": 237
  },
  "hsl": {
    "h": 210,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.71494,
    "c": 0.12338,
    "h": 249.9
  },
  "luminance": 0.36772
}

Semantic roles & 50–950 ramp

primary
#63A8ED
secondary
#EDD6BF
accent
#730ADC
background
#FAFBFE
surface
#F3F7FD
border
#CDD0D5
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #63A8ED

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

Preview Lab → · Contrast checker → · Palette generator →

#63A8ED Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva