#66EFD5#66EFD5

#66EFD5 is a very light, vivid teal. Relative luminance 0.694; OKLCH L 86.9% C 0.126 H 178.7°. Best body text is #000000 at 14.87:1 contrast (WCAG AA passes).

Color values

HEX	#66EFD5
RGB	rgb(102, 239, 213)
HSL	hsl(169, 81%, 67%)
HSV	hsv(169, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 10.9%, 6.3%)
CIE-LAB	lab(86.68, -43.45, 1.37)
CIE-LCH	lch(86.68, 43.47, 178.19°)
OKLab	oklab(86.94% -0.1255 0.003)
OKLCH	oklch(86.94% 0.126 178.7)
XYZ	xyz(48.3508, 69.3571, 73.7771)
Luminance	0.6936 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFD5 #EF6680

analogous

#66EF91 #66EFD5 #66C5EF

triadic

#66EFD5 #D566EF #EFD566

tetradic

#66EFD5 #9166EF #EF6680 #C5EF66

square

#66EFD5 #9166EF #EF6680 #C5EF66

split-complementary

#66EFD5 #EF66C5 #EF9166

monochromatic

#15C6A4 #2FE9C6 #66EFD5 #9DF5E4 #D5FBF3

Accessibility & contrast

On white

1.41

#66EFD5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.87

#66EFD5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFD5

14.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFD5	#FFFFFF	#000000	##000000
##66EFD5	1.00	1.41	14.87	14.87
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.87	21.00	1.00	1.00
##000000	14.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E6E2D4

Deuteranopia (green-blind)

#D1D3D7

Tritanopia (blue-blind)

#00F2E7

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66efd5;
/* rgb */ color: rgb(102, 239, 213);
/* oklch */ color: oklch(86.9% 0.126 178.7);

Tailwind

colors: {
  custom: {
    50: '#9ef5e1',
    500: '#66efd5',
    950: '#000000',
  },
}

SCSS

$custom: #66efd5;
$custom-light: #9ef5e1;
$custom-dark: #000000;

JSON

{
  "hex": "#66efd5",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 213
  },
  "hsl": {
    "h": 168.613,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.86939,
    "c": 0.12552,
    "h": 178.7
  },
  "luminance": 0.69362
}

Semantic roles & 50–950 ramp

primary

#66EFD5

secondary

#C33651

accent

#0831DD

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#0F1715

muted

#808584

Preview Lab

Preview with #66EFD5

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

Preview Lab → · Contrast checker → · Palette generator →