#66EAF9#66EAF9

#66EAF9 is a very light, moderate teal. Relative luminance 0.685; OKLCH L 86.9% C 0.117 H 205.5°. Best body text is #000000 at 14.70:1 contrast (WCAG AA passes).

Color values

HEX#66EAF9
RGBrgb(102, 234, 249)
HSLhsl(186, 92%, 69%)
HSVhsv(186, 59%, 98%)
CMYKcmyk(59%, 6%, 0%, 2.4%)
CIE-LABlab(86.26, -31.84, -18.16)
CIE-LCHlch(86.26, 36.66, 209.69°)
OKLaboklab(86.93% -0.1053 -0.0503)
OKLCHoklch(86.93% 0.117 205.5)
XYZxyz(51.9941, 68.5046, 100.0868)
Luminance0.6851 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66EAF9 #F97566
analogous
#66F9BE #66EAF9 #66A1F9
triadic
#66EAF9 #F966EA #EAF966
tetradic
#66EAF9 #BE66F9 #F97566 #A1F966
square
#66EAF9 #BE66F9 #F97566 #A1F966
split-complementary
#66EAF9 #F966A1 #F9BE66
monochromatic
#09C6DC #2BE2F7 #66EAF9 #A1F2FB #DCFAFE

Accessibility & contrast

On white

1.43
#66EAF9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

14.70
#66EAF9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EAF9
14.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66EAF9#FFFFFF#000000##000000
##66EAF91.001.4314.7014.70
#FFFFFF1.431.0021.0021.00
#00000014.7021.001.001.00
##00000014.7021.001.001.00

Color blindness preview

Protanopia (red-blind)
#D9E1FA
Deuteranopia (green-blind)
#C2D1F9
Tritanopia (blue-blind)
#00F3EE
Achromatopsia (no color)
#D8D8D8

Design tokens & code

CSS
--color: #66eaf9;
/* rgb */ color: rgb(102, 234, 249);
/* oklch */ color: oklch(86.9% 0.117 205.5);
Tailwind
colors: {
  custom: {
    50: '#9ff1fb',
    500: '#66eaf9',
    950: '#000000',
  },
}
SCSS
$custom: #66eaf9;
$custom-light: #9ff1fb;
$custom-dark: #000000;
JSON
{
  "hex": "#66eaf9",
  "rgb": {
    "r": 102,
    "g": 234,
    "b": 249
  },
  "hsl": {
    "h": 186.122,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.86931,
    "c": 0.11669,
    "h": 205.5
  },
  "luminance": 0.6851
}

Semantic roles & 50–950 ramp

primary
#66EAF9
secondary
#D34130
accent
#1700E6
background
#FDFFFF
surface
#F7FEFF
border
#D0D6D7
text
#101617
muted
#818585

Preview Lab

Preview with #66EAF9

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

Preview Lab → · Contrast checker → · Palette generator →

#66EAF9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva