#66EFEF#66EFEF

#66EFEF is a very light, moderate teal. Relative luminance 0.708; OKLCH L 87.7% C 0.119 H 195.2°. Best body text is #000000 at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#66EFEF
RGB	rgb(102, 239, 239)
HSL	hsl(180, 81%, 67%)
HSV	hsv(180, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 0%, 6.3%)
CIE-LAB	lab(87.38, -36.88, -11.23)
CIE-LCH	lch(87.38, 38.55, 196.93°)
OKLab	oklab(87.74% -0.1145 -0.0311)
OKLCH	oklch(87.74% 0.119 195.2)
XYZ	xyz(51.9193, 70.7845, 92.5712)
Luminance	0.7079 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFEF #EF6666

analogous

#66EFAB #66EFEF #66ABEF

triadic

#66EFEF #EF66EF #EFEF66

tetradic

#66EFEF #AB66EF #EF6666 #ABEF66

square

#66EFEF #AB66EF #EF6666 #ABEF66

split-complementary

#66EFEF #EF66AB #EFAB66

monochromatic

#15C6C6 #2FE9E9 #66EFEF #9DF5F5 #D5FBFB

Accessibility & contrast

On white

1.39

#66EFEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.16

#66EFEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFEF

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFEF	#FFFFFF	#000000	##000000
##66EFEF	1.00	1.39	15.16	15.16
#FFFFFF	1.39	1.00	21.00	21.00
#000000	15.16	21.00	1.00	1.00
##000000	15.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1E4EF

Deuteranopia (green-blind)

#CBD4F0

Tritanopia (blue-blind)

#00F6EF

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #66efef;
/* rgb */ color: rgb(102, 239, 239);
/* oklch */ color: oklch(87.7% 0.119 195.2);

Tailwind

colors: {
  custom: {
    50: '#9ff4f4',
    500: '#66efef',
    950: '#000000',
  },
}

SCSS

$custom: #66efef;
$custom-light: #9ff4f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66efef",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 239
  },
  "hsl": {
    "h": 180,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.87737,
    "c": 0.11862,
    "h": 195.2
  },
  "luminance": 0.7079
}

Semantic roles & 50–950 ramp

primary

#66EFEF

secondary

#C33636

accent

#0808DD

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66EFEF

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

Preview Lab → · Contrast checker → · Palette generator →