#66EFE4#66EFE4

#66EFE4 is a very light, vivid teal. Relative luminance 0.702; OKLCH L 87.4% C 0.120 H 188.0°. Best body text is #000000 at 15.03:1 contrast (WCAG AA passes).

Color values

HEX	#66EFE4
RGB	rgb(102, 239, 228)
HSL	hsl(175, 81%, 67%)
HSV	hsv(175, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 4.6%, 6.3%)
CIE-LAB	lab(87.07, -39.73, -5.92)
CIE-LCH	lch(87.07, 40.17, 188.47°)
OKLab	oklab(87.39% -0.119 -0.0166)
OKLCH	oklch(87.39% 0.12 188)
XYZ	xyz(50.3434, 70.1541, 84.2717)
Luminance	0.7016 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFE4 #EF6671

analogous

#66EF9F #66EFE4 #66B6EF

triadic

#66EFE4 #E466EF #EFE466

tetradic

#66EFE4 #9F66EF #EF6671 #B6EF66

square

#66EFE4 #9F66EF #EF6671 #B6EF66

split-complementary

#66EFE4 #EF66B6 #EF9F66

monochromatic

#15C6B8 #2FE9DA #66EFE4 #9DF5EE #D5FBF8

Accessibility & contrast

On white

1.40

#66EFE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.03

#66EFE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFE4

15.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFE4	#FFFFFF	#000000	##000000
##66EFE4	1.00	1.40	15.03	15.03
#FFFFFF	1.40	1.00	21.00	21.00
#000000	15.03	21.00	1.00	1.00
##000000	15.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3E3E4

Deuteranopia (green-blind)

#CED3E5

Tritanopia (blue-blind)

#00F4EB

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #66efe4;
/* rgb */ color: rgb(102, 239, 228);
/* oklch */ color: oklch(87.4% 0.120 188.0);

Tailwind

colors: {
  custom: {
    50: '#9ef5ec',
    500: '#66efe4',
    950: '#000000',
  },
}

SCSS

$custom: #66efe4;
$custom-light: #9ef5ec;
$custom-dark: #000000;

JSON

{
  "hex": "#66efe4",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 228
  },
  "hsl": {
    "h": 175.182,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.87386,
    "c": 0.12021,
    "h": 188
  },
  "luminance": 0.70159
}

Semantic roles & 50–950 ramp

primary

#66EFE4

secondary

#C33641

accent

#0819DD

background

#FCFFFE

surface

#F6FEFD

border

#D0D6D5

text

#101716

muted

#808584

Preview Lab

Preview with #66EFE4

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

Preview Lab → · Contrast checker → · Palette generator →