#66ECEF#66ECEF

#66ECEF is a very light, moderate teal. Relative luminance 0.690; OKLCH L 87.0% C 0.117 H 197.3°. Best body text is #000000 at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#66ECEF
RGB	rgb(102, 236, 239)
HSL	hsl(181, 81%, 67%)
HSV	hsv(181, 57%, 94%)
CMYK	cmyk(57.3%, 1.3%, 0%, 6.3%)
CIE-LAB	lab(86.53, -35.49, -12.50)
CIE-LCH	lch(86.53, 37.63, 199.41°)
OKLab	oklab(87.05% -0.1114 -0.0346)
OKLCH	oklch(87.05% 0.117 197.3)
XYZ	xyz(51.0483, 69.0425, 92.2809)
Luminance	0.6905 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECEF #EF6966

analogous

#66EFAE #66ECEF #66A8EF

triadic

#66ECEF #EF66EC #ECEF66

tetradic

#66ECEF #AE66EF #EF6966 #A8EF66

square

#66ECEF #AE66EF #EF6966 #A8EF66

split-complementary

#66ECEF #EF66A8 #EFAE66

monochromatic

#15C2C6 #2FE5E9 #66ECEF #9DF3F5 #D5FAFB

Accessibility & contrast

On white

1.42

#66ECEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.81

#66ECEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECEF

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECEF	#FFFFFF	#000000	##000000
##66ECEF	1.00	1.42	14.81	14.81
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.81	21.00	1.00	1.00
##000000	14.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDE2EF

Deuteranopia (green-blind)

#C7D2F0

Tritanopia (blue-blind)

#00F3ED

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66ecef;
/* rgb */ color: rgb(102, 236, 239);
/* oklch */ color: oklch(87.0% 0.117 197.3);

Tailwind

colors: {
  custom: {
    50: '#9ff2f4',
    500: '#66ecef',
    950: '#000000',
  },
}

SCSS

$custom: #66ecef;
$custom-light: #9ff2f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecef",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 239
  },
  "hsl": {
    "h": 181.314,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.87047,
    "c": 0.11664,
    "h": 197.3
  },
  "luminance": 0.69048
}

Semantic roles & 50–950 ramp

primary

#66ECEF

secondary

#C33936

accent

#0D08DD

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66ECEF

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

Preview Lab → · Contrast checker → · Palette generator →