#66A7F0#66A7F0

#66A7F0 is a light, vivid cyan. Relative luminance 0.368; OKLCH L 71.6% C 0.127 H 252.5°. Best body text is #000000 at 8.35:1 contrast (WCAG AA passes).

Color values

HEX#66A7F0
RGBrgb(102, 167, 240)
HSLhsl(212, 82%, 67%)
HSVhsv(212, 58%, 94%)
CMYKcmyk(57.5%, 30.4%, 0%, 5.9%)
CIE-LABlab(67.09, 0.31, -42.81)
CIE-LCHlch(67.09, 42.81, 270.41°)
OKLaboklab(71.56% -0.0381 -0.1206)
OKLCHoklch(71.56% 0.127 252.5)
XYZxyz(35.0208, 36.7504, 87.6692)
Luminance0.3675 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66A7F0 #F0AF66
analogous
#66ECF0 #66A7F0 #6A66F0
triadic
#66A7F0 #F066A7 #A7F066
tetradic
#66A7F0 #F066EC #F0AF66 #66F06A
square
#66A7F0 #F066EC #F0AF66 #66F06A
split-complementary
#66A7F0 #F06A66 #ECF066
monochromatic
#1469C8 #2E87EB #66A7F0 #9EC7F5 #D5E7FB

Accessibility & contrast

On white

2.51
#66A7F0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.35
#66A7F0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A7F0
8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66A7F0#FFFFFF#000000##000000
##66A7F01.002.518.358.35
#FFFFFF2.511.0021.0021.00
#0000008.3521.001.001.00
##0000008.3521.001.001.00

Color blindness preview

Protanopia (red-blind)
#89ABF3
Deuteranopia (green-blind)
#769DEF
Tritanopia (blue-blind)
#00B8C1
Achromatopsia (no color)
#A3A3A3

Design tokens & code

CSS
--color: #66a7f0;
/* rgb */ color: rgb(102, 167, 240);
/* oklch */ color: oklch(71.6% 0.127 252.5);
Tailwind
colors: {
  custom: {
    50: '#9bc0f5',
    500: '#66a7f0',
    950: '#000000',
  },
}
SCSS
$custom: #66a7f0;
$custom-light: #9bc0f5;
$custom-dark: #000000;
JSON
{
  "hex": "#66a7f0",
  "rgb": {
    "r": 102,
    "g": 167,
    "b": 240
  },
  "hsl": {
    "h": 211.739,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.71562,
    "c": 0.1265,
    "h": 252.5
  },
  "luminance": 0.36753
}

Semantic roles & 50–950 ramp

primary
#66A7F0
secondary
#EFDAC3
accent
#7907DF
background
#FAFBFE
surface
#F4F7FD
border
#CED0D5
text
#0F1217
muted
#7F8185

Preview Lab

Preview with #66A7F0

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

Preview Lab → · Contrast checker → · Palette generator →

#66A7F0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva