#66E5F5#66E5F5

#66E5F5 is a very light, moderate teal. Relative luminance 0.655; OKLCH L 85.6% C 0.114 H 206.6°. Best body text is #000000 at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#66E5F5
RGB	rgb(102, 229, 245)
HSL	hsl(187, 88%, 68%)
HSV	hsv(187, 58%, 96%)
CMYK	cmyk(58.4%, 6.5%, 0%, 3.9%)
CIE-LAB	lab(84.72, -30.56, -18.38)
CIE-LCH	lch(84.72, 35.66, 211.02°)
OKLab	oklab(85.65% -0.1018 -0.0509)
OKLCH	oklch(85.65% 0.114 206.6)
XYZ	xyz(49.9734, 65.4509, 96.3682)
Luminance	0.6546 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E5F5 #F57666

analogous

#66F5BD #66E5F5 #669EF5

triadic

#66E5F5 #F566E5 #E5F566

tetradic

#66E5F5 #BD66F5 #F57666 #9EF566

square

#66E5F5 #BD66F5 #F57666 #9EF566

split-complementary

#66E5F5 #F5669E #F5BD66

monochromatic

#0EBDD3 #2DDBF1 #66E5F5 #9FEFF9 #D9F9FD

Accessibility & contrast

On white

1.49

#66E5F5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.09

#66E5F5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E5F5

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E5F5	#FFFFFF	#000000	##000000
##66E5F5	1.00	1.49	14.09	14.09
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.09	21.00	1.00	1.00
##000000	14.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4DDF6

Deuteranopia (green-blind)

#BECDF5

Tritanopia (blue-blind)

#00EEEA

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66e5f5;
/* rgb */ color: rgb(102, 229, 245);
/* oklch */ color: oklch(85.6% 0.114 206.6);

Tailwind

colors: {
  custom: {
    50: '#9fedf8',
    500: '#66e5f5',
    950: '#000000',
  },
}

SCSS

$custom: #66e5f5;
$custom-light: #9fedf8;
$custom-dark: #000000;

JSON

{
  "hex": "#66e5f5",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 245
  },
  "hsl": {
    "h": 186.713,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.85648,
    "c": 0.11378,
    "h": 206.6
  },
  "luminance": 0.65456
}

Semantic roles & 50–950 ramp

primary

#66E5F5

secondary

#CE4331

accent

#1B01E4

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101617

muted

#818585

Preview Lab

Preview with #66E5F5

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

Preview Lab → · Contrast checker → · Palette generator →