#63A4F0#63A4F0

#63A4F0 is a light, vivid cyan. Relative luminance 0.355; OKLCH L 70.8% C 0.131 H 253.4°. Best body text is #000000 at 8.10:1 contrast (WCAG AA passes).

Color values

HEX#63A4F0
RGBrgb(99, 164, 240)
HSLhsl(212, 82%, 66%)
HSVhsv(212, 59%, 94%)
CMYKcmyk(58.8%, 31.7%, 0%, 5.9%)
CIE-LABlab(66.13, 1.43, -44.32)
CIE-LCHlch(66.13, 44.34, 271.84°)
OKLaboklab(70.77% -0.0373 -0.1251)
OKLCHoklch(70.77% 0.131 253.4)
XYZxyz(34.1436, 35.4918, 87.4725)
Luminance0.3549 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A4F0 #F0AF63
analogous
#63EBF0 #63A4F0 #6963F0
triadic
#63A4F0 #F063A4 #A4F063
tetradic
#63A4F0 #F063EB #F0AF63 #63F069
square
#63A4F0 #F063EB #F0AF63 #63F069
split-complementary
#63A4F0 #F06963 #EBF063
monochromatic
#1365C6 #2B83EB #63A4F0 #9BC5F5 #D3E5FB

Accessibility & contrast

On white

2.59
#63A4F0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.10
#63A4F0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A4F0
8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A4F0#FFFFFF#000000##000000
##63A4F01.002.598.108.10
#FFFFFF2.591.0021.0021.00
#0000008.1021.001.001.00
##0000008.1021.001.001.00

Color blindness preview

Protanopia (red-blind)
#84A8F3
Deuteranopia (green-blind)
#719BEE
Tritanopia (blue-blind)
#00B5BF
Achromatopsia (no color)
#A1A1A1

Design tokens & code

CSS
--color: #63a4f0;
/* rgb */ color: rgb(99, 164, 240);
/* oklch */ color: oklch(70.8% 0.131 253.4);
Tailwind
colors: {
  custom: {
    50: '#9abef5',
    500: '#63a4f0',
    950: '#000000',
  },
}
SCSS
$custom: #63a4f0;
$custom-light: #9abef5;
$custom-dark: #000000;
JSON
{
  "hex": "#63a4f0",
  "rgb": {
    "r": 99,
    "g": 164,
    "b": 240
  },
  "hsl": {
    "h": 212.34,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.70774,
    "c": 0.13054,
    "h": 253.4
  },
  "luminance": 0.35495
}

Semantic roles & 50–950 ramp

primary
#63A4F0
secondary
#EED9C1
accent
#7B07DF
background
#FAFBFF
surface
#F3F6FE
border
#CDD0D6
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #63A4F0

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

Preview Lab → · Contrast checker → · Palette generator →

#63A4F0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva