#66E5EE#66E5EE

#66E5EE is a very light, moderate teal. Relative luminance 0.650; OKLCH L 85.4% C 0.113 H 201.7°. Best body text is #000000 at 14.01:1 contrast (WCAG AA passes).

Color values

HEX	#66E5EE
RGB	rgb(102, 229, 238)
HSL	hsl(184, 80%, 67%)
HSV	hsv(184, 57%, 93%)
CMYK	cmyk(57.1%, 3.8%, 0%, 6.7%)
CIE-LAB	lab(84.50, -32.48, -15.01)
CIE-LCH	lch(84.50, 35.78, 204.80°)
OKLab	oklab(85.4% -0.1046 -0.0415)
OKLCH	oklch(85.4% 0.113 201.7)
XYZ	xyz(48.9250, 65.0315, 90.8463)
Luminance	0.6504 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E5EE #EE6F66

analogous

#66EEB3 #66E5EE #66A1EE

triadic

#66E5EE #EE66E5 #E5EE66

tetradic

#66E5EE #B366EE #EE6F66 #A1EE66

square

#66E5EE #B366EE #EE6F66 #A1EE66

split-complementary

#66E5EE #EE66A1 #EEB366

monochromatic

#16B8C4 #2FDCE8 #66E5EE #9DEEF4 #D4F8FA

Accessibility & contrast

On white

1.50

#66E5EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.01

#66E5EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E5EE

14.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E5EE	#FFFFFF	#000000	##000000
##66E5EE	1.00	1.50	14.01	14.01
#FFFFFF	1.50	1.00	21.00	21.00
#000000	14.01	21.00	1.00	1.00
##000000	14.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6DCEF

Deuteranopia (green-blind)

#C0CCEF

Tritanopia (blue-blind)

#00EDE7

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66e5ee;
/* rgb */ color: rgb(102, 229, 238);
/* oklch */ color: oklch(85.4% 0.113 201.7);

Tailwind

colors: {
  custom: {
    50: '#9eedf3',
    500: '#66e5ee',
    950: '#000000',
  },
}

SCSS

$custom: #66e5ee;
$custom-light: #9eedf3;
$custom-dark: #000000;

JSON

{
  "hex": "#66e5ee",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 238
  },
  "hsl": {
    "h": 183.971,
    "s": 80,
    "l": 66.667
  },
  "oklch": {
    "l": 0.85403,
    "c": 0.1125,
    "h": 201.7
  },
  "luminance": 0.65036
}

Semantic roles & 50–950 ramp

primary

#66E5EE

secondary

#C24037

accent

#1709DC

background

#FCFFFF

surface

#F6FEFE

border

#D0D6D6

text

#101617

muted

#808585

Preview Lab

Preview with #66E5EE

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

Preview Lab → · Contrast checker → · Palette generator →