#66ECF0#66ECF0

#66ECF0 is a very light, moderate teal. Relative luminance 0.691; OKLCH L 87.1% C 0.117 H 197.9°. Best body text is #000000 at 14.82:1 contrast (WCAG AA passes).

Color values

HEX	#66ECF0
RGB	rgb(102, 236, 240)
HSL	hsl(182, 82%, 67%)
HSV	hsv(182, 58%, 94%)
CMYK	cmyk(57.5%, 1.7%, 0%, 5.9%)
CIE-LAB	lab(86.55, -35.22, -12.98)
CIE-LCH	lch(86.55, 37.54, 200.23°)
OKLab	oklab(87.08% -0.111 -0.0359)
OKLCH	oklch(87.08% 0.117 197.9)
XYZ	xyz(51.1964, 69.1017, 93.0611)
Luminance	0.6911 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECF0 #F06A66

analogous

#66F0AF #66ECF0 #66A7F0

triadic

#66ECF0 #F066EC #ECF066

tetradic

#66ECF0 #AF66F0 #F06A66 #A7F066

square

#66ECF0 #AF66F0 #F06A66 #A7F066

split-complementary

#66ECF0 #F066A7 #F0AF66

monochromatic

#14C3C8 #2EE5EB #66ECF0 #9EF3F5 #D5FAFB

Accessibility & contrast

On white

1.42

#66ECF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.82

#66ECF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECF0

14.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECF0	#FFFFFF	#000000	##000000
##66ECF0	1.00	1.42	14.82	14.82
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.82	21.00	1.00	1.00
##000000	14.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDE2F1

Deuteranopia (green-blind)

#C7D2F1

Tritanopia (blue-blind)

#00F3ED

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66ecf0;
/* rgb */ color: rgb(102, 236, 240);
/* oklch */ color: oklch(87.1% 0.117 197.9);

Tailwind

colors: {
  custom: {
    50: '#9ff2f4',
    500: '#66ecf0',
    950: '#000000',
  },
}

SCSS

$custom: #66ecf0;
$custom-light: #9ff2f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecf0",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 240
  },
  "hsl": {
    "h": 181.739,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.8708,
    "c": 0.11664,
    "h": 197.9
  },
  "luminance": 0.69107
}

Semantic roles & 50–950 ramp

primary

#66ECF0

secondary

#C53935

accent

#0D07DF

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66ECF0

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

Preview Lab → · Contrast checker → · Palette generator →