#63B6F0#63B6F0

#63B6F0 is a light, moderate cyan. Relative luminance 0.424; OKLCH L 74.7% C 0.117 H 241.2°. Best body text is #000000 at 9.48:1 contrast (WCAG AA passes).

Color values

HEX#63B6F0
RGBrgb(99, 182, 240)
HSLhsl(205, 82%, 66%)
HSVhsv(205, 59%, 94%)
CMYKcmyk(58.8%, 24.2%, 0%, 5.9%)
CIE-LABlab(71.14, -8.59, -36.49)
CIE-LCHlch(71.14, 37.48, 256.76°)
OKLaboklab(74.72% -0.0563 -0.1023)
OKLCHoklch(74.72% 0.117 241.2)
XYZxyz(37.5959, 42.3963, 88.6232)
Luminance0.4240 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63B6F0 #F09D63
analogous
#63F0E4 #63B6F0 #6370F0
triadic
#63B6F0 #F063B6 #B6F063
tetradic
#63B6F0 #E463F0 #F09D63 #70F063
square
#63B6F0 #E463F0 #F09D63 #70F063
split-complementary
#63B6F0 #F06370 #F0E463
monochromatic
#137CC6 #2B9CEB #63B6F0 #9BD0F5 #D3EAFB

Accessibility & contrast

On white

2.22
#63B6F0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.48
#63B6F0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B6F0
9.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63B6F0#FFFFFF#000000##000000
##63B6F01.002.229.489.48
#FFFFFF2.221.0021.0021.00
#0000009.4821.001.001.00
##0000009.4821.001.001.00

Color blindness preview

Protanopia (red-blind)
#9CB6F3
Deuteranopia (green-blind)
#89A8EF
Tritanopia (blue-blind)
#00C4CA
Achromatopsia (no color)
#AEAEAE

Design tokens & code

CSS
--color: #63b6f0;
/* rgb */ color: rgb(99, 182, 240);
/* oklch */ color: oklch(74.7% 0.117 241.2);
Tailwind
colors: {
  custom: {
    50: '#9acbf5',
    500: '#63b6f0',
    950: '#000000',
  },
}
SCSS
$custom: #63b6f0;
$custom-light: #9acbf5;
$custom-dark: #000000;
JSON
{
  "hex": "#63b6f0",
  "rgb": {
    "r": 99,
    "g": 182,
    "b": 240
  },
  "hsl": {
    "h": 204.681,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.74721,
    "c": 0.1168,
    "h": 241.2
  },
  "luminance": 0.424
}

Semantic roles & 50–950 ramp

primary
#63B6F0
secondary
#EED3C1
accent
#6007DF
background
#FAFCFE
surface
#F3F8FD
border
#CDD1D5
text
#0F1317
muted
#7F8285

Preview Lab

Preview with #63B6F0

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

Preview Lab → · Contrast checker → · Palette generator →

#63B6F0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva