#66F9FD#66F9FD

#66F9FD is a very light, vivid teal. Relative luminance 0.777; OKLCH L 90.5% C 0.125 H 197.7°. Best body text is #000000 at 16.53:1 contrast (WCAG AA passes).

Color values

HEX#66F9FD
RGBrgb(102, 249, 253)
HSLhsl(182, 97%, 70%)
HSVhsv(182, 60%, 99%)
CMYKcmyk(59.7%, 1.6%, 0%, 0.8%)
CIE-LABlab(90.63, -37.76, -13.69)
CIE-LCHlch(90.63, 40.16, 199.93°)
OKLaboklab(90.5% -0.1189 -0.0379)
OKLCHoklch(90.5% 0.125 197.7)
XYZxyz(57.0771, 77.6620, 104.8917)
Luminance0.7767 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66F9FD #FD6A66
analogous
#66FDB5 #66F9FD #66AEFD
triadic
#66F9FD #FD66F9 #F9FD66
tetradic
#66F9FD #B566FD #FD6A66 #AEFD66
square
#66F9FD #B566FD #FD6A66 #AEFD66
split-complementary
#66F9FD #FD66AE #FDB566
monochromatic
#03E0E6 #2AF7FC #66F9FD #A2FBFE #DFFEFF

Accessibility & contrast

On white

1.27
#66F9FD on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

16.53
#66F9FD on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F9FD
16.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66F9FD#FFFFFF#000000##000000
##66F9FD1.001.2716.5316.53
#FFFFFF1.271.0021.0021.00
#00000016.5321.001.001.00
##00000016.5321.001.001.00

Color blindness preview

Protanopia (red-blind)
#E9EEFE
Deuteranopia (green-blind)
#D1DDFE
Tritanopia (blue-blind)
#00FFFA
Achromatopsia (no color)
#E4E4E4

Design tokens & code

CSS
--color: #66f9fd;
/* rgb */ color: rgb(102, 249, 253);
/* oklch */ color: oklch(90.5% 0.125 197.7);
Tailwind
colors: {
  custom: {
    50: '#a1fbfe',
    500: '#66f9fd',
    950: '#000000',
  },
}
SCSS
$custom: #66f9fd;
$custom-light: #a1fbfe;
$custom-dark: #000000;
JSON
{
  "hex": "#66f9fd",
  "rgb": {
    "r": 102,
    "g": 249,
    "b": 253
  },
  "hsl": {
    "h": 181.589,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.90495,
    "c": 0.12476,
    "h": 197.7
  },
  "luminance": 0.77668
}

Semantic roles & 50–950 ramp

primary
#66F9FD
secondary
#D8342F
accent
#0600E6
background
#FDFFFF
surface
#F7FFFF
border
#D0D7D7
text
#101717
muted
#818585

Preview Lab

Preview with #66F9FD

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

Preview Lab → · Contrast checker → · Palette generator →

#66F9FD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva