#63ADE8#63ADE8

#63ADE8 is a light, moderate cyan. Relative luminance 0.384; OKLCH L 72.4% C 0.114 H 244.4°. Best body text is #000000 at 8.67:1 contrast (WCAG AA passes).

Color values

HEX#63ADE8
RGBrgb(99, 173, 232)
HSLhsl(207, 74%, 65%)
HSVhsv(207, 57%, 91%)
CMYKcmyk(57.3%, 25.4%, 0%, 9%)
CIE-LABlab(68.29, -6.13, -36.57)
CIE-LCHlch(68.29, 37.08, 260.49°)
OKLaboklab(72.36% -0.0492 -0.1026)
OKLCHoklch(72.36% 0.114 244.4)
XYZxyz(34.6493, 38.3629, 81.9071)
Luminance0.3837 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63ADE8 #E89E63
analogous
#63E8E1 #63ADE8 #636AE8
triadic
#63ADE8 #E863AD #ADE863
tetradic
#63ADE8 #E163E8 #E89E63 #6AE863
square
#63ADE8 #E163E8 #E89E63 #6AE863
split-complementary
#63ADE8 #E8636A #E8E163
monochromatic
#1B71B6 #2E91E0 #63ADE8 #98C9F0 #CEE5F8

Accessibility & contrast

On white

2.42
#63ADE8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.67
#63ADE8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ADE8
8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63ADE8#FFFFFF#000000##000000
##63ADE81.002.428.678.67
#FFFFFF2.421.0021.0021.00
#0000008.6721.001.001.00
##0000008.6721.001.001.00

Color blindness preview

Protanopia (red-blind)
#93AEEB
Deuteranopia (green-blind)
#82A1E7
Tritanopia (blue-blind)
#00BBC1
Achromatopsia (no color)
#A6A6A6

Design tokens & code

CSS
--color: #63ade8;
/* rgb */ color: rgb(99, 173, 232);
/* oklch */ color: oklch(72.4% 0.114 244.4);
Tailwind
colors: {
  custom: {
    50: '#99c5ef',
    500: '#63ade8',
    950: '#000000',
  },
}
SCSS
$custom: #63ade8;
$custom-light: #99c5ef;
$custom-dark: #000000;
JSON
{
  "hex": "#63ade8",
  "rgb": {
    "r": 99,
    "g": 173,
    "b": 232
  },
  "hsl": {
    "h": 206.617,
    "s": 74.302,
    "l": 64.902
  },
  "oklch": {
    "l": 0.72355,
    "c": 0.1138,
    "h": 244.4
  },
  "luminance": 0.38366
}

Semantic roles & 50–950 ramp

primary
#63ADE8
secondary
#EAD1BD
accent
#680FD6
background
#F9FCFE
surface
#F2F8FD
border
#CCD1D5
text
#0F1216
muted
#7E8184

Preview Lab

Preview with #63ADE8

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

Preview Lab → · Contrast checker → · Palette generator →

#63ADE8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva