#66DEE4#66DEE4

#66DEE4 is a very light, moderate teal. Relative luminance 0.607; OKLCH L 83.4% C 0.108 H 199.8°. Best body text is #000000 at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#66DEE4
RGB	rgb(102, 222, 228)
HSL	hsl(183, 70%, 65%)
HSV	hsv(183, 55%, 89%)
CMYK	cmyk(55.3%, 2.6%, 0%, 10.6%)
CIE-LAB	lab(82.20, -31.85, -13.16)
CIE-LCH	lch(82.20, 34.46, 202.46°)
OKLab	oklab(83.45% -0.1013 -0.0364)
OKLCH	oklch(83.45% 0.108 199.8)
XYZ	xyz(45.5985, 60.6643, 82.6901)
Luminance	0.6067 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DEE4 #E46C66

analogous

#66E4AB #66DEE4 #669FE4

triadic

#66DEE4 #E466DE #DEE466

tetradic

#66DEE4 #AB66E4 #E46C66 #9FE466

square

#66DEE4 #AB66E4 #E46C66 #9FE466

split-complementary

#66DEE4 #E4669F #E4AB66

monochromatic

#1FAAB0 #32D3DB #66DEE4 #9AE9ED #CEF4F6

Accessibility & contrast

On white

1.60

#66DEE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.13

#66DEE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DEE4

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DEE4	#FFFFFF	#000000	##000000
##66DEE4	1.00	1.60	13.13	13.13
#FFFFFF	1.60	1.00	21.00	21.00
#000000	13.13	21.00	1.00	1.00
##000000	13.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0D5E5

Deuteranopia (green-blind)

#BCC6E5

Tritanopia (blue-blind)

#00E5DF

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66dee4;
/* rgb */ color: rgb(102, 222, 228);
/* oklch */ color: oklch(83.4% 0.108 199.8);

Tailwind

colors: {
  custom: {
    50: '#9de8ec',
    500: '#66dee4',
    950: '#000000',
  },
}

SCSS

$custom: #66dee4;
$custom-light: #9de8ec;
$custom-dark: #000000;

JSON

{
  "hex": "#66dee4",
  "rgb": {
    "r": 102,
    "g": 222,
    "b": 228
  },
  "hsl": {
    "h": 182.857,
    "s": 70,
    "l": 64.706
  },
  "oklch": {
    "l": 0.83447,
    "c": 0.10764,
    "h": 199.8
  },
  "luminance": 0.60669
}

Semantic roles & 50–950 ramp

primary

#66DEE4

secondary

#B1423D

accent

#1D14D2

background

#FCFEFE

surface

#F6FCFD

border

#D0D5D5

text

#0F1616

muted

#808484

Preview Lab

Preview with #66DEE4

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

Preview Lab → · Contrast checker → · Palette generator →