#64B5F0#64B5F0

#64B5F0 is a light, moderate cyan. Relative luminance 0.420; OKLCH L 74.5% C 0.117 H 242.2°. Best body text is #000000 at 9.41:1 contrast (WCAG AA passes).

Color values

HEX#64B5F0
RGBrgb(100, 181, 240)
HSLhsl(205, 82%, 67%)
HSVhsv(205, 58%, 94%)
CMYKcmyk(58.3%, 24.6%, 0%, 5.9%)
CIE-LABlab(70.90, -7.85, -36.86)
CIE-LCHlch(70.90, 37.69, 257.97°)
OKLaboklab(74.54% -0.0545 -0.1034)
OKLCHoklch(74.54% 0.117 242.2)
XYZxyz(37.5017, 42.0449, 88.5603)
Luminance0.4205 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#64B5F0 #F09F64
analogous
#64F0E5 #64B5F0 #646FF0
triadic
#64B5F0 #F064B5 #B5F064
tetradic
#64B5F0 #E564F0 #F09F64 #6FF064
square
#64B5F0 #E564F0 #F09F64 #6FF064
split-complementary
#64B5F0 #F0646F #F0E564
monochromatic
#137BC6 #2C9AEB #64B5F0 #9CD0F5 #D4EAFB

Accessibility & contrast

On white

2.23
#64B5F0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.41
#64B5F0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #64B5F0
9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##64B5F0#FFFFFF#000000##000000
##64B5F01.002.239.419.41
#FFFFFF2.231.0021.0021.00
#0000009.4121.001.001.00
##0000009.4121.001.001.00

Color blindness preview

Protanopia (red-blind)
#9BB5F3
Deuteranopia (green-blind)
#88A7EF
Tritanopia (blue-blind)
#00C3C9
Achromatopsia (no color)
#ADADAD

Design tokens & code

CSS
--color: #64b5f0;
/* rgb */ color: rgb(100, 181, 240);
/* oklch */ color: oklch(74.5% 0.117 242.2);
Tailwind
colors: {
  custom: {
    50: '#9bcbf5',
    500: '#64b5f0',
    950: '#000000',
  },
}
SCSS
$custom: #64b5f0;
$custom-light: #9bcbf5;
$custom-dark: #000000;
JSON
{
  "hex": "#64b5f0",
  "rgb": {
    "r": 100,
    "g": 181,
    "b": 240
  },
  "hsl": {
    "h": 205.286,
    "s": 82.353,
    "l": 66.667
  },
  "oklch": {
    "l": 0.74541,
    "c": 0.11689,
    "h": 242.2
  },
  "luminance": 0.42048
}

Semantic roles & 50–950 ramp

primary
#64B5F0
secondary
#EED4C1
accent
#6207DF
background
#FAFCFE
surface
#F3F8FD
border
#CDD1D5
text
#0F1317
muted
#7F8285

Preview Lab

Preview with #64B5F0

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

Preview Lab → · Contrast checker → · Palette generator →

#64B5F0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva