#66FDD9#66FDD9

#66FDD9 is a very light, vivid teal. Relative luminance 0.781; OKLCH L 90.3% C 0.139 H 174.5°. Best body text is #000000 at 16.62:1 contrast (WCAG AA passes).

Color values

HEX	#66FDD9
RGB	rgb(102, 253, 217)
HSL	hsl(166, 97%, 70%)
HSV	hsv(166, 60%, 99%)
CMYK	cmyk(59.7%, 0%, 14.2%, 0.8%)
CIE-LAB	lab(90.82, -48.55, 5.29)
CIE-LCH	lch(90.82, 48.84, 173.79°)
OKLab	oklab(90.33% -0.1381 0.0133)
OKLCH	oklch(90.33% 0.139 174.5)
XYZ	xyz(53.1232, 78.0796, 77.9034)
Luminance	0.7809 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66FDD9 #FD668A

analogous

#66FD8D #66FDD9 #66D6FD

triadic

#66FDD9 #D966FD #FDD966

tetradic

#66FDD9 #8D66FD #FD668A #D6FD66

square

#66FDD9 #8D66FD #FD668A #D6FD66

split-complementary

#66FDD9 #FD66D6 #FD8D66

monochromatic

#03E6B0 #2AFCCA #66FDD9 #A2FEE8 #DFFFF7

Accessibility & contrast

On white

1.26

#66FDD9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.62

#66FDD9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66FDD9

16.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66FDD9	#FFFFFF	#000000	##000000
##66FDD9	1.00	1.26	16.62	16.62
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.62	21.00	1.00	1.00
##000000	16.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F5EED7

Deuteranopia (green-blind)

#DFDEDC

Tritanopia (blue-blind)

#00FFF2

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #66fdd9;
/* rgb */ color: rgb(102, 253, 217);
/* oklch */ color: oklch(90.3% 0.139 174.5);

Tailwind

colors: {
  custom: {
    50: '#9fffe4',
    500: '#66fdd9',
    950: '#000000',
  },
}

SCSS

$custom: #66fdd9;
$custom-light: #9fffe4;
$custom-dark: #000000;

JSON

{
  "hex": "#66fdd9",
  "rgb": {
    "r": 102,
    "g": 253,
    "b": 217
  },
  "hsl": {
    "h": 165.695,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.90334,
    "c": 0.13877,
    "h": 174.5
  },
  "luminance": 0.78085
}

Semantic roles & 50–950 ramp

primary

#66FDD9

secondary

#D82F58

accent

#0037E6

background

#FDFFFE

surface

#F7FFFC

border

#D0D7D5

text

#101815

muted

#818684

Preview Lab

Preview with #66FDD9

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

Preview Lab → · Contrast checker → · Palette generator →