#63A5F3#63A5F3

#63A5F3 is a light, vivid cyan. Relative luminance 0.360; OKLCH L 71.1% C 0.133 H 253.7°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX#63A5F3
RGBrgb(99, 165, 243)
HSLhsl(213, 86%, 67%)
HSVhsv(213, 59%, 95%)
CMYKcmyk(59.3%, 32.1%, 0%, 4.7%)
CIE-LABlab(66.54, 1.81, -45.31)
CIE-LCHlch(66.54, 45.35, 272.29°)
OKLaboklab(71.14% -0.0375 -0.128)
OKLCHoklch(71.14% 0.133 253.7)
XYZxyz(34.7726, 36.0309, 89.8988)
Luminance0.3603 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#63A5F3 #F3B163
analogous
#63EDF3 #63A5F3 #6963F3
triadic
#63A5F3 #F363A5 #A5F363
tetradic
#63A5F3 #F363ED #F3B163 #63F369
square
#63A5F3 #F363ED #F3B163 #63F369
split-complementary
#63A5F3 #F36963 #EDF363
monochromatic
#1066CC #2A84EF #63A5F3 #9CC6F7 #D5E7FC

Accessibility & contrast

On white

2.56
#63A5F3 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.21
#63A5F3 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A5F3
8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##63A5F3#FFFFFF#000000##000000
##63A5F31.002.568.218.21
#FFFFFF2.561.0021.0021.00
#0000008.2121.001.001.00
##0000008.2121.001.001.00

Color blindness preview

Protanopia (red-blind)
#84A9F6
Deuteranopia (green-blind)
#719CF1
Tritanopia (blue-blind)
#00B7C1
Achromatopsia (no color)
#A2A2A2

Design tokens & code

CSS
--color: #63a5f3;
/* rgb */ color: rgb(99, 165, 243);
/* oklch */ color: oklch(71.1% 0.133 253.7);
Tailwind
colors: {
  custom: {
    50: '#9abff7',
    500: '#63a5f3',
    950: '#000000',
  },
}
SCSS
$custom: #63a5f3;
$custom-light: #9abff7;
$custom-dark: #000000;
JSON
{
  "hex": "#63a5f3",
  "rgb": {
    "r": 99,
    "g": 165,
    "b": 243
  },
  "hsl": {
    "h": 212.5,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.71143,
    "c": 0.13336,
    "h": 253.7
  },
  "luminance": 0.36034
}

Semantic roles & 50–950 ramp

primary
#63A5F3
secondary
#F0DBC2
accent
#7C03E2
background
#FAFBFF
surface
#F3F6FF
border
#CDD0D7
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #63A5F3

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

Preview Lab → · Contrast checker → · Palette generator →

#63A5F3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva