#66E9F0#66E9F0

#66E9F0 is a very light, moderate teal. Relative luminance 0.674; OKLCH L 86.4% C 0.115 H 200.1°. Best body text is #000000 at 14.48:1 contrast (WCAG AA passes).

Color values

HEX	#66E9F0
RGB	rgb(102, 233, 240)
HSL	hsl(183, 82%, 67%)
HSV	hsv(183, 58%, 94%)
CMYK	cmyk(57.5%, 2.9%, 0%, 5.9%)
CIE-LAB	lab(85.70, -33.82, -14.26)
CIE-LCH	lch(85.70, 36.71, 202.86°)
OKLab	oklab(86.39% -0.1079 -0.0395)
OKLCH	oklch(86.39% 0.115 200.1)
XYZ	xyz(50.3399, 67.3888, 92.7756)
Luminance	0.6739 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E9F0 #F06D66

analogous

#66F0B2 #66E9F0 #66A4F0

triadic

#66E9F0 #F066E9 #E9F066

tetradic

#66E9F0 #B266F0 #F06D66 #A4F066

square

#66E9F0 #B266F0 #F06D66 #A4F066

split-complementary

#66E9F0 #F066A4 #F0B266

monochromatic

#14BFC8 #2EE1EB #66E9F0 #9EF1F5 #D5F9FB

Accessibility & contrast

On white

1.45

#66E9F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.48

#66E9F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E9F0

14.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E9F0	#FFFFFF	#000000	##000000
##66E9F0	1.00	1.45	14.48	14.48
#FFFFFF	1.45	1.00	21.00	21.00
#000000	14.48	21.00	1.00	1.00
##000000	14.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAE0F1

Deuteranopia (green-blind)

#C4CFF1

Tritanopia (blue-blind)

#00F1EB

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #66e9f0;
/* rgb */ color: rgb(102, 233, 240);
/* oklch */ color: oklch(86.4% 0.115 200.1);

Tailwind

colors: {
  custom: {
    50: '#9ff0f4',
    500: '#66e9f0',
    950: '#000000',
  },
}

SCSS

$custom: #66e9f0;
$custom-light: #9ff0f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66e9f0",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 240
  },
  "hsl": {
    "h": 183.043,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.8639,
    "c": 0.11488,
    "h": 200.1
  },
  "luminance": 0.67394
}

Semantic roles & 50–950 ramp

primary

#66E9F0

secondary

#C53C35

accent

#1207DF

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101617

muted

#818585

Preview Lab

Preview with #66E9F0

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

Preview Lab → · Contrast checker → · Palette generator →