#66FBEF#66FBEF

#66FBEF is a very light, vivid teal. Relative luminance 0.781; OKLCH L 90.5% C 0.128 H 187.8°. Best body text is #000000 at 16.61:1 contrast (WCAG AA passes).

Color values

HEX	#66FBEF
RGB	rgb(102, 251, 239)
HSL	hsl(175, 95%, 69%)
HSV	hsv(175, 59%, 98%)
CMYK	cmyk(59.4%, 0%, 4.8%, 1.6%)
CIE-LAB	lab(90.80, -42.31, -6.15)
CIE-LCH	lch(90.80, 42.75, 188.27°)
OKLab	oklab(90.51% -0.1267 -0.0173)
OKLCH	oklch(90.51% 0.128 187.8)
XYZ	xyz(55.5497, 78.0453, 93.7814)
Luminance	0.7805 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FBEF #FB6672

analogous

#66FBA5 #66FBEF #66BDFB

triadic

#66FBEF #EF66FB #FBEF66

tetradic

#66FBEF #A566FB #FB6672 #BDFB66

square

#66FBEF #A566FB #FB6672 #BDFB66

split-complementary

#66FBEF #FB66BD #FBA566

monochromatic

#06E1CF #2AF9E9 #66FBEF #A2FDF5 #DDFEFB

Accessibility & contrast

On white

1.26

#66FBEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.61

#66FBEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FBEF

16.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FBEF	#FFFFFF	#000000	##000000
##66FBEF	1.00	1.26	16.61	16.61
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.61	21.00	1.00	1.00
##000000	16.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EEEFEF

Deuteranopia (green-blind)

#D7DEF1

Tritanopia (blue-blind)

#00FFF7

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #66fbef;
/* rgb */ color: rgb(102, 251, 239);
/* oklch */ color: oklch(90.5% 0.128 187.8);

Tailwind

colors: {
  custom: {
    50: '#a0fdf4',
    500: '#66fbef',
    950: '#000000',
  },
}

SCSS

$custom: #66fbef;
$custom-light: #a0fdf4;
$custom-dark: #000000;

JSON

{
  "hex": "#66fbef",
  "rgb": {
    "r": 102,
    "g": 251,
    "b": 239
  },
  "hsl": {
    "h": 175.168,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.90506,
    "c": 0.12784,
    "h": 187.8
  },
  "luminance": 0.78051
}

Semantic roles & 50–950 ramp

primary

#66FBEF

secondary

#D5303D

accent

#0012E6

background

#FDFFFF

surface

#F7FFFE

border

#D0D7D6

text

#101817

muted

#818685

Preview Lab

Preview with #66FBEF

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

Preview Lab → · Contrast checker → · Palette generator →