#63A3E8#63A3E8

#63A3E8 is a light, vivid cyan. Relative luminance 0.347; OKLCH L 70.2% C 0.122 H 251.6°. Best body text is #000000 at 7.93:1 contrast (WCAG AA passes).

Color values

HEX#63A3E8
RGBrgb(99, 163, 232)
HSLhsl(211, 74%, 65%)
HSVhsv(211, 57%, 91%)
CMYKcmyk(57.3%, 29.7%, 0%, 9%)
CIE-LABlab(65.49, -0.53, -40.93)
CIE-LCHlch(65.49, 40.94, 269.25°)
OKLaboklab(70.16% -0.0384 -0.1153)
OKLCHoklch(70.16% 0.122 251.6)
XYZxyz(32.8031, 34.6704, 81.2917)
Luminance0.3467 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A3E8 #E8A863
analogous
#63E5E8 #63A3E8 #6663E8
triadic
#63A3E8 #E863A3 #A3E863
tetradic
#63A3E8 #E863E5 #E8A863 #63E866
square
#63A3E8 #E863E5 #E8A863 #63E866
split-complementary
#63A3E8 #E86663 #E5E863
monochromatic
#1B65B6 #2E84E0 #63A3E8 #98C2F0 #CEE2F8

Accessibility & contrast

On white

2.65
#63A3E8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.93
#63A3E8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A3E8
7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A3E8#FFFFFF#000000##000000
##63A3E81.002.657.937.93
#FFFFFF2.651.0021.0021.00
#0000007.9321.001.001.00
##0000007.9321.001.001.00

Color blindness preview

Protanopia (red-blind)
#86A6EB
Deuteranopia (green-blind)
#7599E7
Tritanopia (blue-blind)
#00B3BB
Achromatopsia (no color)
#9F9F9F

Design tokens & code

CSS
--color: #63a3e8;
/* rgb */ color: rgb(99, 163, 232);
/* oklch */ color: oklch(70.2% 0.122 251.6);
Tailwind
colors: {
  custom: {
    50: '#99beef',
    500: '#63a3e8',
    950: '#000000',
  },
}
SCSS
$custom: #63a3e8;
$custom-light: #99beef;
$custom-dark: #000000;
JSON
{
  "hex": "#63a3e8",
  "rgb": {
    "r": 99,
    "g": 163,
    "b": 232
  },
  "hsl": {
    "h": 211.128,
    "s": 74.302,
    "l": 64.902
  },
  "oklch": {
    "l": 0.70155,
    "c": 0.12152,
    "h": 251.6
  },
  "luminance": 0.34673
}

Semantic roles & 50–950 ramp

primary
#63A3E8
secondary
#EAD4BD
accent
#760FD6
background
#F9FBFE
surface
#F2F6FD
border
#CCD0D5
text
#0F1216
muted
#7E8184

Preview Lab

Preview with #63A3E8

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

Preview Lab → · Contrast checker → · Palette generator →

#63A3E8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva