#64B8FD#64B8FD

#64B8FD is a light, vivid cyan. Relative luminance 0.441; OKLCH L 75.8% C 0.129 H 245.5°. Best body text is #000000 at 9.82:1 contrast (WCAG AA passes).

Color values

HEX#64B8FD
RGBrgb(100, 184, 253)
HSLhsl(207, 97%, 69%)
HSVhsv(207, 60%, 99%)
CMYKcmyk(60.5%, 27.3%, 0%, 0.8%)
CIE-LABlab(72.28, -5.45, -41.75)
CIE-LCHlch(72.28, 42.10, 262.56°)
OKLaboklab(75.81% -0.0537 -0.1175)
OKLCHoklch(75.81% 0.129 245.5)
XYZxyz(40.1191, 44.0783, 99.3032)
Luminance0.4408 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#64B8FD #FDA964
analogous
#64FDF6 #64B8FD #646CFD
triadic
#64B8FD #FD64B8 #B8FD64
tetradic
#64B8FD #F664FD #FDA964 #6CFD64
square
#64B8FD #F664FD #FDA964 #6CFD64
split-complementary
#64B8FD #FD646C #FDF664
monochromatic
#037EE4 #289CFC #64B8FD #A0D4FE #DDEFFF

Accessibility & contrast

On white

2.14
#64B8FD on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.82
#64B8FD on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B8FD
9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##64B8FD#FFFFFF#000000##000000
##64B8FD1.002.149.829.82
#FFFFFF2.141.0021.0021.00
#0000009.8221.001.001.00
##0000009.8221.001.001.00

Color blindness preview

Protanopia (red-blind)
#9ABAFF
Deuteranopia (green-blind)
#85ABFC
Tritanopia (blue-blind)
#00C9D0
Achromatopsia (no color)
#B1B1B1

Design tokens & code

CSS
--color: #64b8fd;
/* rgb */ color: rgb(100, 184, 253);
/* oklch */ color: oklch(75.8% 0.129 245.5);
Tailwind
colors: {
  custom: {
    50: '#9ccdfe',
    500: '#64b8fd',
    950: '#000000',
  },
}
SCSS
$custom: #64b8fd;
$custom-light: #9ccdfe;
$custom-dark: #000000;
JSON
{
  "hex": "#64b8fd",
  "rgb": {
    "r": 100,
    "g": 184,
    "b": 253
  },
  "hsl": {
    "h": 207.059,
    "s": 97.452,
    "l": 69.216
  },
  "oklch": {
    "l": 0.75809,
    "c": 0.12915,
    "h": 245.5
  },
  "luminance": 0.44082
}

Semantic roles & 50–950 ramp

primary
#64B8FD
secondary
#F5DCC8
accent
#6800E6
background
#FAFCFF
surface
#F4F8FF
border
#CED1D7
text
#0F1318
muted
#7F8286

Preview Lab

Preview with #64B8FD

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

Preview Lab → · Contrast checker → · Palette generator →

#64B8FD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva