#63A9EC#63A9EC

#63A9EC is a light, vivid cyan. Relative luminance 0.371; OKLCH L 71.7% C 0.121 H 248.9°. Best body text is #000000 at 8.42:1 contrast (WCAG AA passes).

Color values

HEX#63A9EC
RGBrgb(99, 169, 236)
HSLhsl(209, 78%, 66%)
HSVhsv(209, 58%, 93%)
CMYKcmyk(58.1%, 28.4%, 0%, 7.5%)
CIE-LABlab(67.34, -2.66, -40.24)
CIE-LCHlch(67.34, 40.33, 266.22°)
OKLaboklab(71.66% -0.0437 -0.1132)
OKLCHoklch(71.66% 0.121 248.9)
XYZxyz(34.4684, 37.0816, 84.6817)
Luminance0.3709 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A9EC #ECA663
analogous
#63ECEA #63A9EC #6364EC
triadic
#63A9EC #EC63A9 #A9EC63
tetradic
#63A9EC #EA63EC #ECA663 #64EC63
square
#63A9EC #EA63EC #ECA663 #64EC63
split-complementary
#63A9EC #EC6364 #ECEA63
monochromatic
#176CBE #2C8BE5 #63A9EC #9AC7F3 #D0E5F9

Accessibility & contrast

On white

2.49
#63A9EC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.42
#63A9EC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A9EC
8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A9EC#FFFFFF#000000##000000
##63A9EC1.002.498.428.42
#FFFFFF2.491.0021.0021.00
#0000008.4221.001.001.00
##0000008.4221.001.001.00

Color blindness preview

Protanopia (red-blind)
#8DABEF
Deuteranopia (green-blind)
#7A9EEB
Tritanopia (blue-blind)
#00B9C0
Achromatopsia (no color)
#A4A4A4

Design tokens & code

CSS
--color: #63a9ec;
/* rgb */ color: rgb(99, 169, 236);
/* oklch */ color: oklch(71.7% 0.121 248.9);
Tailwind
colors: {
  custom: {
    50: '#99c2f2',
    500: '#63a9ec',
    950: '#000000',
  },
}
SCSS
$custom: #63a9ec;
$custom-light: #99c2f2;
$custom-dark: #000000;
JSON
{
  "hex": "#63a9ec",
  "rgb": {
    "r": 99,
    "g": 169,
    "b": 236
  },
  "hsl": {
    "h": 209.343,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.71664,
    "c": 0.12137,
    "h": 248.9
  },
  "luminance": 0.37085
}

Semantic roles & 50–950 ramp

primary
#63A9EC
secondary
#ECD5BF
accent
#700BDB
background
#FAFBFE
surface
#F3F7FD
border
#CDD0D5
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #63A9EC

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

Preview Lab → · Contrast checker → · Palette generator →

#63A9EC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva