#66ECE5#66ECE5

#66ECE5 is a very light, moderate teal. Relative luminance 0.685; OKLCH L 86.7% C 0.117 H 190.5°. Best body text is #000000 at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#66ECE5
RGB	rgb(102, 236, 229)
HSL	hsl(177, 78%, 66%)
HSV	hsv(177, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 3%, 7.5%)
CIE-LAB	lab(86.24, -38.11, -7.67)
CIE-LCH	lch(86.24, 38.87, 191.38°)
OKLab	oklab(86.72% -0.1155 -0.0214)
OKLCH	oklch(86.72% 0.117 190.5)
XYZ	xyz(49.6116, 68.4678, 84.7146)
Luminance	0.6847 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECE5 #EC666D

analogous

#66ECA2 #66ECE5 #66B0EC

triadic

#66ECE5 #E566EC #ECE566

tetradic

#66ECE5 #A266EC #EC666D #B0EC66

square

#66ECE5 #A266EC #EC666D #B0EC66

split-complementary

#66ECE5 #EC66B0 #ECA266

monochromatic

#18C0B7 #30E5DC #66ECE5 #9CF3EE #D3FAF8

Accessibility & contrast

On white

1.43

#66ECE5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.69

#66ECE5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECE5

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECE5	#FFFFFF	#000000	##000000
##66ECE5	1.00	1.43	14.69	14.69
#FFFFFF	1.43	1.00	21.00	21.00
#000000	14.69	21.00	1.00	1.00
##000000	14.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0E1E5

Deuteranopia (green-blind)

#CAD1E6

Tritanopia (blue-blind)

#00F2E9

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #66ece5;
/* rgb */ color: rgb(102, 236, 229);
/* oklch */ color: oklch(86.7% 0.117 190.5);

Tailwind

colors: {
  custom: {
    50: '#9ef2ed',
    500: '#66ece5',
    950: '#000000',
  },
}

SCSS

$custom: #66ece5;
$custom-light: #9ef2ed;
$custom-dark: #000000;

JSON

{
  "hex": "#66ece5",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 229
  },
  "hsl": {
    "h": 176.866,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.86721,
    "c": 0.11749,
    "h": 190.5
  },
  "luminance": 0.68473
}

Semantic roles & 50–950 ramp

primary

#66ECE5

secondary

#BE383F

accent

#0B16DA

background

#FCFFFE

surface

#F6FEFD

border

#D0D6D5

text

#101716

muted

#808584

Preview Lab

Preview with #66ECE5

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

Preview Lab → · Contrast checker → · Palette generator →