#66E4F0#66E4F0

#66E4F0 is a very light, moderate teal. Relative luminance 0.646; OKLCH L 85.2% C 0.112 H 203.8°. Best body text is #000000 at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#66E4F0
RGB	rgb(102, 228, 240)
HSL	hsl(185, 82%, 67%)
HSV	hsv(185, 58%, 94%)
CMYK	cmyk(57.5%, 5%, 0%, 5.9%)
CIE-LAB	lab(84.28, -31.46, -16.40)
CIE-LCH	lch(84.28, 35.48, 207.53°)
OKLab	oklab(85.24% -0.1027 -0.0454)
OKLCH	oklch(85.24% 0.112 203.8)
XYZ	xyz(48.9445, 64.5979, 92.3104)
Luminance	0.6460 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E4F0 #F07266

analogous

#66F0B7 #66E4F0 #669FF0

triadic

#66E4F0 #F066E4 #E4F066

tetradic

#66E4F0 #B766F0 #F07266 #9FF066

square

#66E4F0 #B766F0 #F07266 #9FF066

split-complementary

#66E4F0 #F0669F #F0B766

monochromatic

#14B8C8 #2EDAEB #66E4F0 #9EEEF5 #D5F8FB

Accessibility & contrast

On white

1.51

#66E4F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.92

#66E4F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E4F0

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E4F0	#FFFFFF	#000000	##000000
##66E4F0	1.00	1.51	13.92	13.92
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.92	21.00	1.00	1.00
##000000	13.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4DBF1

Deuteranopia (green-blind)

#BECBF1

Tritanopia (blue-blind)

#00ECE7

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66e4f0;
/* rgb */ color: rgb(102, 228, 240);
/* oklch */ color: oklch(85.2% 0.112 203.8);

Tailwind

colors: {
  custom: {
    50: '#9eedf5',
    500: '#66e4f0',
    950: '#000000',
  },
}

SCSS

$custom: #66e4f0;
$custom-light: #9eedf5;
$custom-dark: #000000;

JSON

{
  "hex": "#66e4f0",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 240
  },
  "hsl": {
    "h": 185.217,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.85243,
    "c": 0.11229,
    "h": 203.8
  },
  "luminance": 0.64603
}

Semantic roles & 50–950 ramp

primary

#66E4F0

secondary

#C54235

accent

#1A07DF

background

#FCFFFF

surface

#F6FEFE

border

#D0D6D6

text

#101617

muted

#808585

Preview Lab

Preview with #66E4F0

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

Preview Lab → · Contrast checker → · Palette generator →