#64B7FD#64B7FD

#64B7FD is a light, vivid cyan. Relative luminance 0.437; OKLCH L 75.6% C 0.130 H 246.1°. Best body text is #000000 at 9.73:1 contrast (WCAG AA passes).

Color values

HEX#64B7FD
RGBrgb(100, 183, 253)
HSLhsl(207, 97%, 69%)
HSVhsv(207, 60%, 99%)
CMYKcmyk(60.5%, 27.7%, 0%, 0.8%)
CIE-LABlab(72.00, -4.91, -42.18)
CIE-LCHlch(72.00, 42.46, 263.37°)
OKLaboklab(75.59% -0.0526 -0.1187)
OKLCHoklch(75.59% 0.13 246.1)
XYZxyz(39.9121, 43.6644, 99.2342)
Luminance0.4367 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#64B7FD #FDAA64
analogous
#64FDF6 #64B7FD #646BFD
triadic
#64B7FD #FD64B7 #B7FD64
tetradic
#64B7FD #F664FD #FDAA64 #6BFD64
square
#64B7FD #F664FD #FDAA64 #6BFD64
split-complementary
#64B7FD #FD646B #FDF664
monochromatic
#037DE4 #289BFC #64B7FD #A0D3FE #DDEFFF

Accessibility & contrast

On white

2.16
#64B7FD on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.73
#64B7FD on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B7FD
9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##64B7FD#FFFFFF#000000##000000
##64B7FD1.002.169.739.73
#FFFFFF2.161.0021.0021.00
#0000009.7321.001.001.00
##0000009.7321.001.001.00

Color blindness preview

Protanopia (red-blind)
#99B9FF
Deuteranopia (green-blind)
#84AAFC
Tritanopia (blue-blind)
#00C8CF
Achromatopsia (no color)
#B0B0B0

Design tokens & code

CSS
--color: #64b7fd;
/* rgb */ color: rgb(100, 183, 253);
/* oklch */ color: oklch(75.6% 0.130 246.1);
Tailwind
colors: {
  custom: {
    50: '#9cccfe',
    500: '#64b7fd',
    950: '#000000',
  },
}
SCSS
$custom: #64b7fd;
$custom-light: #9cccfe;
$custom-dark: #000000;
JSON
{
  "hex": "#64b7fd",
  "rgb": {
    "r": 100,
    "g": 183,
    "b": 253
  },
  "hsl": {
    "h": 207.451,
    "s": 97.452,
    "l": 69.216
  },
  "oklch": {
    "l": 0.7559,
    "c": 0.12988,
    "h": 246.1
  },
  "luminance": 0.43668
}

Semantic roles & 50–950 ramp

primary
#64B7FD
secondary
#F5DDC8
accent
#6900E6
background
#FAFCFF
surface
#F4F8FF
border
#CED1D7
text
#0F1318
muted
#7F8286

Preview Lab

Preview with #64B7FD

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

Preview Lab → · Contrast checker → · Palette generator →

#64B7FD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva