#66EFE5#66EFE5

#66EFE5 is a very light, moderate teal. Relative luminance 0.702; OKLCH L 87.4% C 0.120 H 188.6°. Best body text is #000000 at 15.04:1 contrast (WCAG AA passes).

Color values

HEX	#66EFE5
RGB	rgb(102, 239, 229)
HSL	hsl(176, 81%, 67%)
HSV	hsv(176, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 4.2%, 6.3%)
CIE-LAB	lab(87.10, -39.47, -6.40)
CIE-LCH	lch(87.10, 39.99, 189.21°)
OKLab	oklab(87.42% -0.1186 -0.0179)
OKLCH	oklch(87.42% 0.12 188.6)
XYZ	xyz(50.4826, 70.2098, 85.0049)
Luminance	0.7022 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFE5 #EF6670

analogous

#66EFA0 #66EFE5 #66B5EF

triadic

#66EFE5 #E566EF #EFE566

tetradic

#66EFE5 #A066EF #EF6670 #B5EF66

square

#66EFE5 #A066EF #EF6670 #B5EF66

split-complementary

#66EFE5 #EF66B5 #EFA066

monochromatic

#15C6B9 #2FE9DC #66EFE5 #9DF5EE #D5FBF8

Accessibility & contrast

On white

1.40

#66EFE5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.04

#66EFE5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFE5

15.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFE5	#FFFFFF	#000000	##000000
##66EFE5	1.00	1.40	15.04	15.04
#FFFFFF	1.40	1.00	21.00	21.00
#000000	15.04	21.00	1.00	1.00
##000000	15.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3E3E5

Deuteranopia (green-blind)

#CDD3E6

Tritanopia (blue-blind)

#00F4EC

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #66efe5;
/* rgb */ color: rgb(102, 239, 229);
/* oklch */ color: oklch(87.4% 0.120 188.6);

Tailwind

colors: {
  custom: {
    50: '#9ef5ed',
    500: '#66efe5',
    950: '#000000',
  },
}

SCSS

$custom: #66efe5;
$custom-light: #9ef5ed;
$custom-dark: #000000;

JSON

{
  "hex": "#66efe5",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 229
  },
  "hsl": {
    "h": 175.62,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.87417,
    "c": 0.11998,
    "h": 188.6
  },
  "luminance": 0.70215
}

Semantic roles & 50–950 ramp

primary

#66EFE5

secondary

#C33640

accent

#0818DD

background

#FCFFFE

surface

#F6FEFD

border

#D0D6D5

text

#101716

muted

#808584

Preview Lab

Preview with #66EFE5

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

Preview Lab → · Contrast checker → · Palette generator →