#66E4E5#66E4E5

#66E4E5 is a very light, moderate teal. Relative luminance 0.640; OKLCH L 84.9% C 0.112 H 196.0°. Best body text is #000000 at 13.79:1 contrast (WCAG AA passes).

Color values

HEX	#66E4E5
RGB	rgb(102, 228, 229)
HSL	hsl(180, 71%, 65%)
HSV	hsv(180, 55%, 90%)
CMYK	cmyk(55.5%, 0.4%, 0%, 10.2%)
CIE-LAB	lab(83.95, -34.41, -11.08)
CIE-LCH	lch(83.95, 36.15, 197.85°)
OKLab	oklab(84.87% -0.1072 -0.0307)
OKLCH	oklch(84.87% 0.112 196)
XYZ	xyz(47.3597, 63.9640, 83.9640)
Luminance	0.6397 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E4E5 #E56766

analogous

#66E5A6 #66E4E5 #66A5E5

triadic

#66E4E5 #E566E4 #E4E566

tetradic

#66E4E5 #A666E5 #E56766 #A5E566

square

#66E4E5 #A666E5 #E56766 #A5E566

split-complementary

#66E4E5 #E566A5 #E5A666

monochromatic

#1EB1B2 #32DBDC #66E4E5 #9AEDEE #CFF6F7

Accessibility & contrast

On white

1.52

#66E4E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.79

#66E4E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E4E5

13.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E4E5	#FFFFFF	#000000	##000000
##66E4E5	1.00	1.52	13.79	13.79
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.79	21.00	1.00	1.00
##000000	13.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7DAE5

Deuteranopia (green-blind)

#C2CBE6

Tritanopia (blue-blind)

#00EBE4

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66e4e5;
/* rgb */ color: rgb(102, 228, 229);
/* oklch */ color: oklch(84.9% 0.112 196.0);

Tailwind

colors: {
  custom: {
    50: '#9deded',
    500: '#66e4e5',
    950: '#000000',
  },
}

SCSS

$custom: #66e4e5;
$custom-light: #9deded;
$custom-dark: #000000;

JSON

{
  "hex": "#66e4e5",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 229
  },
  "hsl": {
    "h": 180.472,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.84868,
    "c": 0.1115,
    "h": 196
  },
  "luminance": 0.63969
}

Semantic roles & 50–950 ramp

primary

#66E4E5

secondary

#B33D3C

accent

#1413D3

background

#FCFFFE

surface

#F6FEFD

border

#D0D6D5

text

#0F1616

muted

#808584

Preview Lab

Preview with #66E4E5

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

Preview Lab → · Contrast checker → · Palette generator →