#66F5F0#66F5F0

#66F5F0 is a very light, vivid teal. Relative luminance 0.744; OKLCH L 89.2% C 0.123 H 192.0°. Best body text is #000000 at 15.88:1 contrast (WCAG AA passes).

Color values

HEX#66F5F0
RGBrgb(102, 245, 240)
HSLhsl(178, 88%, 68%)
HSVhsv(178, 58%, 96%)
CMYKcmyk(58.4%, 0%, 2%, 3.9%)
CIE-LABlab(89.12, -39.36, -9.16)
CIE-LCHlch(89.12, 40.41, 193.11°)
OKLaboklab(89.15% -0.1202 -0.0255)
OKLCHoklch(89.15% 0.123 192)
XYZxyz(53.8532, 74.4153, 93.9467)
Luminance0.7442 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66F5F0 #F5666B
analogous
#66F5A8 #66F5F0 #66B2F5
triadic
#66F5F0 #F066F5 #F5F066
tetradic
#66F5F0 #A866F5 #F5666B #B2F566
square
#66F5F0 #A866F5 #F5666B #B2F566
split-complementary
#66F5F0 #F566B2 #F5A866
monochromatic
#0ED3CC #2DF1EA #66F5F0 #9FF9F6 #D9FDFB

Accessibility & contrast

On white

1.32
#66F5F0 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

15.88
#66F5F0 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F5F0
15.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66F5F0#FFFFFF#000000##000000
##66F5F01.001.3215.8815.88
#FFFFFF1.321.0021.0021.00
#00000015.8821.001.001.00
##00000015.8821.001.001.00

Color blindness preview

Protanopia (red-blind)
#E7EAF0
Deuteranopia (green-blind)
#D1D9F1
Tritanopia (blue-blind)
#00FBF3
Achromatopsia (no color)
#E0E0E0

Design tokens & code

CSS
--color: #66f5f0;
/* rgb */ color: rgb(102, 245, 240);
/* oklch */ color: oklch(89.2% 0.123 192.0);
Tailwind
colors: {
  custom: {
    50: '#a0f9f4',
    500: '#66f5f0',
    950: '#000000',
  },
}
SCSS
$custom: #66f5f0;
$custom-light: #a0f9f4;
$custom-dark: #000000;
JSON
{
  "hex": "#66f5f0",
  "rgb": {
    "r": 102,
    "g": 245,
    "b": 240
  },
  "hsl": {
    "h": 177.902,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.89153,
    "c": 0.12284,
    "h": 192
  },
  "luminance": 0.74421
}

Semantic roles & 50–950 ramp

primary
#66F5F0
secondary
#CE3137
accent
#0109E4
background
#FDFFFF
surface
#F7FFFE
border
#D0D7D6
text
#101717
muted
#818585

Preview Lab

Preview with #66F5F0

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

Preview Lab → · Contrast checker → · Palette generator →

#66F5F0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva