#66E9F7#66E9F7

#66E9F7 is a very light, moderate teal. Relative luminance 0.678; OKLCH L 86.6% C 0.116 H 204.9°. Best body text is #000000 at 14.56:1 contrast (WCAG AA passes).

Color values

HEX	#66E9F7
RGB	rgb(102, 233, 247)
HSL	hsl(186, 90%, 68%)
HSV	hsv(186, 59%, 97%)
CMYK	cmyk(58.7%, 5.7%, 0%, 3.1%)
CIE-LAB	lab(85.91, -31.92, -17.62)
CIE-LCH	lch(85.91, 36.46, 208.91°)
OKLab	oklab(86.63% -0.1051 -0.0488)
OKLCH	oklch(86.63% 0.116 204.9)
XYZ	xyz(51.3999, 67.8128, 98.3580)
Luminance	0.6782 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E9F7 #F77466

analogous

#66F7BC #66E9F7 #66A0F7

triadic

#66E9F7 #F766E9 #E9F766

tetradic

#66E9F7 #BC66F7 #F77466 #A0F766

square

#66E9F7 #BC66F7 #F77466 #A0F766

split-complementary

#66E9F7 #F766A0 #F7BC66

monochromatic

#0BC4D7 #2CE1F4 #66E9F7 #A0F1FA #DAFAFD

Accessibility & contrast

On white

1.44

#66E9F7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.56

#66E9F7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E9F7

14.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E9F7	#FFFFFF	#000000	##000000
##66E9F7	1.00	1.44	14.56	14.56
#FFFFFF	1.44	1.00	21.00	21.00
#000000	14.56	21.00	1.00	1.00
##000000	14.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8E0F8

Deuteranopia (green-blind)

#C2D0F8

Tritanopia (blue-blind)

#00F2ED

Achromatopsia (no color)

#D7D7D7

Design tokens & code

CSS

--color: #66e9f7;
/* rgb */ color: rgb(102, 233, 247);
/* oklch */ color: oklch(86.6% 0.116 204.9);

Tailwind

colors: {
  custom: {
    50: '#9ff0f9',
    500: '#66e9f7',
    950: '#000000',
  },
}

SCSS

$custom: #66e9f7;
$custom-light: #9ff0f9;
$custom-dark: #000000;

JSON

{
  "hex": "#66e9f7",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 247
  },
  "hsl": {
    "h": 185.793,
    "s": 90.062,
    "l": 68.431
  },
  "oklch": {
    "l": 0.86633,
    "c": 0.11585,
    "h": 204.9
  },
  "luminance": 0.67818
}

Semantic roles & 50–950 ramp

primary

#66E9F7

secondary

#D04031

accent

#1600E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101617

muted

#818585

Preview Lab

Preview with #66E9F7

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

Preview Lab → · Contrast checker → · Palette generator →