#66DDE4#66DDE4

#66DDE4 is a very light, moderate teal. Relative luminance 0.601; OKLCH L 83.2% C 0.107 H 200.5°. Best body text is #000000 at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#66DDE4
RGB	rgb(102, 221, 228)
HSL	hsl(183, 70%, 65%)
HSV	hsv(183, 55%, 89%)
CMYK	cmyk(55.3%, 3.1%, 0%, 10.6%)
CIE-LAB	lab(81.91, -31.37, -13.59)
CIE-LCH	lch(81.91, 34.19, 203.43°)
OKLab	oklab(83.22% -0.1003 -0.0376)
OKLCH	oklch(83.22% 0.107 200.5)
XYZ	xyz(45.3337, 60.1347, 82.6018)
Luminance	0.6014 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66DDE4 #E46D66

analogous

#66E4AC #66DDE4 #669EE4

triadic

#66DDE4 #E466DD #DDE466

tetradic

#66DDE4 #AC66E4 #E46D66 #9EE466

square

#66DDE4 #AC66E4 #E46D66 #9EE466

split-complementary

#66DDE4 #E4669E #E4AC66

monochromatic

#1FA8B0 #32D1DB #66DDE4 #9AE9ED #CEF4F6

Accessibility & contrast

On white

1.61

#66DDE4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.03

#66DDE4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66DDE4

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66DDE4	#FFFFFF	#000000	##000000
##66DDE4	1.00	1.61	13.03	13.03
#FFFFFF	1.61	1.00	21.00	21.00
#000000	13.03	21.00	1.00	1.00
##000000	13.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CFD4E5

Deuteranopia (green-blind)

#BBC5E5

Tritanopia (blue-blind)

#00E4DF

Achromatopsia (no color)

#CCCCCC

Design tokens & code

CSS

--color: #66dde4;
/* rgb */ color: rgb(102, 221, 228);
/* oklch */ color: oklch(83.2% 0.107 200.5);

Tailwind

colors: {
  custom: {
    50: '#9de8ec',
    500: '#66dde4',
    950: '#000000',
  },
}

SCSS

$custom: #66dde4;
$custom-light: #9de8ec;
$custom-dark: #000000;

JSON

{
  "hex": "#66dde4",
  "rgb": {
    "r": 102,
    "g": 221,
    "b": 228
  },
  "hsl": {
    "h": 183.333,
    "s": 70,
    "l": 64.706
  },
  "oklch": {
    "l": 0.83216,
    "c": 0.10706,
    "h": 200.5
  },
  "luminance": 0.60139
}

Semantic roles & 50–950 ramp

primary

#66DDE4

secondary

#B1433D

accent

#1E14D2

background

#FCFEFE

surface

#F6FCFD

border

#D0D5D5

text

#0F1616

muted

#808484

Preview Lab

Preview with #66DDE4

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

Preview Lab → · Contrast checker → · Palette generator →