#66FFEF#66FFEF

#66FFEF is a very light, vivid teal. Relative luminance 0.806; OKLCH L 91.4% C 0.131 H 185.6°. Best body text is #000000 at 17.12:1 contrast (WCAG AA passes).

Color values

HEX	#66FFEF
RGB	rgb(102, 255, 239)
HSL	hsl(174, 100%, 70%)
HSV	hsv(174, 60%, 100%)
CMYK	cmyk(60%, 0%, 6.3%, 0%)
CIE-LAB	lab(91.94, -44.08, -4.47)
CIE-LCH	lch(91.94, 44.30, 185.79°)
OKLab	oklab(91.43% -0.1307 -0.0128)
OKLCH	oklch(91.43% 0.131 185.6)
XYZ	xyz(56.8124, 80.5708, 94.2023)
Luminance	0.8058 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FFEF #FF6676

analogous

#66FFA2 #66FFEF #66C3FF

triadic

#66FFEF #EF66FF #FFEF66

tetradic

#66FFEF #A266FF #FF6676 #C3FF66

square

#66FFEF #A266FF #FF6676 #C3FF66

split-complementary

#66FFEF #FF66C3 #FFA266

monochromatic

#00EBD2 #29FFE9 #66FFEF #A3FFF5 #E0FFFC

Accessibility & contrast

On white

1.23

#66FFEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.12

#66FFEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FFEF

17.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FFEF	#FFFFFF	#000000	##000000
##66FFEF	1.00	1.23	17.12	17.12
#FFFFFF	1.23	1.00	21.00	21.00
#000000	17.12	21.00	1.00	1.00
##000000	17.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3F2EF

Deuteranopia (green-blind)

#DCE1F1

Tritanopia (blue-blind)

#00FFFA

Achromatopsia (no color)

#E8E8E8

Design tokens & code

CSS

--color: #66ffef;
/* rgb */ color: rgb(102, 255, 239);
/* oklch */ color: oklch(91.4% 0.131 185.6);

Tailwind

colors: {
  custom: {
    50: '#a1fff4',
    500: '#66ffef',
    950: '#000000',
  },
}

SCSS

$custom: #66ffef;
$custom-light: #a1fff4;
$custom-dark: #000000;

JSON

{
  "hex": "#66ffef",
  "rgb": {
    "r": 102,
    "g": 255,
    "b": 239
  },
  "hsl": {
    "h": 173.725,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.91431,
    "c": 0.13131,
    "h": 185.6
  },
  "luminance": 0.80577
}

Semantic roles & 50–950 ramp

primary

#66FFEF

secondary

#DA2F41

accent

#0018E6

background

#FDFFFF

surface

#F7FFFE

border

#D0D7D6

text

#101817

muted

#818685

Preview Lab

Preview with #66FFEF

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

Preview Lab → · Contrast checker → · Palette generator →