#66ECDD#66ECDD

#66ECDD is a very light, moderate teal. Relative luminance 0.680; OKLCH L 86.5% C 0.119 H 185.2°. Best body text is #000000 at 14.61:1 contrast (WCAG AA passes).

Color values

HEX	#66ECDD
RGB	rgb(102, 236, 221)
HSL	hsl(173, 78%, 66%)
HSV	hsv(173, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 6.4%, 7.5%)
CIE-LAB	lab(86.02, -40.14, -3.79)
CIE-LCH	lch(86.02, 40.32, 185.39°)
OKLab	oklab(86.47% -0.1189 -0.0109)
OKLCH	oklch(86.47% 0.119 185.2)
XYZ	xyz(48.5203, 68.0313, 78.9669)
Luminance	0.6804 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECDD #EC6675

analogous

#66EC9A #66ECDD #66B8EC

triadic

#66ECDD #DD66EC #ECDD66

tetradic

#66ECDD #9A66EC #EC6675 #B8EC66

square

#66ECDD #9A66EC #EC6675 #B8EC66

split-complementary

#66ECDD #EC66B8 #EC9A66

monochromatic

#18C0AD #30E5D1 #66ECDD #9CF3E9 #D3FAF5

Accessibility & contrast

On white

1.44

#66ECDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.61

#66ECDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECDD

14.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECDD	#FFFFFF	#000000	##000000
##66ECDD	1.00	1.44	14.61	14.61
#FFFFFF	1.44	1.00	21.00	21.00
#000000	14.61	21.00	1.00	1.00
##000000	14.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1E0DD

Deuteranopia (green-blind)

#CCD1DF

Tritanopia (blue-blind)

#00F1E7

Achromatopsia (no color)

#D7D7D7

Design tokens & code

CSS

--color: #66ecdd;
/* rgb */ color: rgb(102, 236, 221);
/* oklch */ color: oklch(86.5% 0.119 185.2);

Tailwind

colors: {
  custom: {
    50: '#9ef2e7',
    500: '#66ecdd',
    950: '#000000',
  },
}

SCSS

$custom: #66ecdd;
$custom-light: #9ef2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecdd",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 221
  },
  "hsl": {
    "h": 173.284,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.86473,
    "c": 0.11941,
    "h": 185.2
  },
  "luminance": 0.68036
}

Semantic roles & 50–950 ramp

primary

#66ECDD

secondary

#BE3847

accent

#0B22DA

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#0F1716

muted

#808584

Preview Lab

Preview with #66ECDD

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

Preview Lab → · Contrast checker → · Palette generator →