#66E4EC#66E4EC

#66E4EC is a very light, moderate teal. Relative luminance 0.644; OKLCH L 85.1% C 0.112 H 201.0°. Best body text is #000000 at 13.87:1 contrast (WCAG AA passes).

Color values

HEX	#66E4EC
RGB	rgb(102, 228, 236)
HSL	hsl(184, 78%, 66%)
HSV	hsv(184, 57%, 93%)
CMYK	cmyk(56.8%, 3.4%, 0%, 7.5%)
CIE-LAB	lab(84.15, -32.54, -14.47)
CIE-LCH	lch(84.15, 35.62, 203.97°)
OKLab	oklab(85.1% -0.1043 -0.04)
OKLCH	oklch(85.1% 0.112 201)
XYZ	xyz(48.3569, 64.3629, 89.2155)
Luminance	0.6437 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E4EC #EC6E66

analogous

#66ECB1 #66E4EC #66A1EC

triadic

#66E4EC #EC66E4 #E4EC66

tetradic

#66E4EC #B166EC #EC6E66 #A1EC66

square

#66E4EC #B166EC #EC6E66 #A1EC66

split-complementary

#66E4EC #EC66A1 #ECB166

monochromatic

#18B6C0 #30DAE5 #66E4EC #9CEEF3 #D3F7FA

Accessibility & contrast

On white

1.51

#66E4EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.87

#66E4EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E4EC

13.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E4EC	#FFFFFF	#000000	##000000
##66E4EC	1.00	1.51	13.87	13.87
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.87	21.00	1.00	1.00
##000000	13.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5DBED

Deuteranopia (green-blind)

#C0CBED

Tritanopia (blue-blind)

#00ECE6

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66e4ec;
/* rgb */ color: rgb(102, 228, 236);
/* oklch */ color: oklch(85.1% 0.112 201.0);

Tailwind

colors: {
  custom: {
    50: '#9eedf2',
    500: '#66e4ec',
    950: '#000000',
  },
}

SCSS

$custom: #66e4ec;
$custom-light: #9eedf2;
$custom-dark: #000000;

JSON

{
  "hex": "#66e4ec",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 236
  },
  "hsl": {
    "h": 183.582,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.85104,
    "c": 0.11174,
    "h": 201
  },
  "luminance": 0.64368
}

Semantic roles & 50–950 ramp

primary

#66E4EC

secondary

#BE4038

accent

#180BDA

background

#FCFFFF

surface

#F6FEFE

border

#D0D6D6

text

#101616

muted

#808585

Preview Lab

Preview with #66E4EC

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

Preview Lab → · Contrast checker → · Palette generator →