#66E9F5#66E9F5

#66E9F5 is a very light, moderate teal. Relative luminance 0.677; OKLCH L 86.6% C 0.115 H 203.5°. Best body text is #000000 at 14.54:1 contrast (WCAG AA passes).

Color values

HEX	#66E9F5
RGB	rgb(102, 233, 245)
HSL	hsl(185, 88%, 68%)
HSV	hsv(185, 58%, 96%)
CMYK	cmyk(58.4%, 4.9%, 0%, 3.9%)
CIE-LAB	lab(85.85, -32.47, -16.67)
CIE-LCH	lch(85.85, 36.49, 207.17°)
OKLab	oklab(86.56% -0.1059 -0.0461)
OKLCH	oklch(86.56% 0.115 203.5)
XYZ	xyz(51.0929, 67.6900, 96.7413)
Luminance	0.6770 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E9F5 #F57266

analogous

#66F5B9 #66E9F5 #66A1F5

triadic

#66E9F5 #F566E9 #E9F566

tetradic

#66E9F5 #B966F5 #F57266 #A1F566

square

#66E9F5 #B966F5 #F57266 #A1F566

split-complementary

#66E9F5 #F566A1 #F5B966

monochromatic

#0EC2D3 #2DE1F1 #66E9F5 #9FF1F9 #D9FAFD

Accessibility & contrast

On white

1.44

#66E9F5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.54

#66E9F5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E9F5

14.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E9F5	#FFFFFF	#000000	##000000
##66E9F5	1.00	1.44	14.54	14.54
#FFFFFF	1.44	1.00	21.00	21.00
#000000	14.54	21.00	1.00	1.00
##000000	14.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9E0F6

Deuteranopia (green-blind)

#C2D0F6

Tritanopia (blue-blind)

#00F1EC

Achromatopsia (no color)

#D7D7D7

Design tokens & code

CSS

--color: #66e9f5;
/* rgb */ color: rgb(102, 233, 245);
/* oklch */ color: oklch(86.6% 0.115 203.5);

Tailwind

colors: {
  custom: {
    50: '#9ff0f8',
    500: '#66e9f5',
    950: '#000000',
  },
}

SCSS

$custom: #66e9f5;
$custom-light: #9ff0f8;
$custom-dark: #000000;

JSON

{
  "hex": "#66e9f5",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 245
  },
  "hsl": {
    "h": 185.035,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.86563,
    "c": 0.11549,
    "h": 203.5
  },
  "luminance": 0.67695
}

Semantic roles & 50–950 ramp

primary

#66E9F5

secondary

#CE3E31

accent

#1401E4

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101617

muted

#818585

Preview Lab

Preview with #66E9F5

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

Preview Lab → · Contrast checker → · Palette generator →