#66ECF1#66ECF1

#66ECF1 is a very light, moderate teal. Relative luminance 0.692; OKLCH L 87.1% C 0.117 H 198.6°. Best body text is #000000 at 14.83:1 contrast (WCAG AA passes).

Color values

HEX	#66ECF1
RGB	rgb(102, 236, 241)
HSL	hsl(182, 83%, 67%)
HSV	hsv(182, 58%, 95%)
CMYK	cmyk(57.7%, 2.1%, 0%, 5.5%)
CIE-LAB	lab(86.58, -34.96, -13.46)
CIE-LCH	lch(86.58, 37.46, 201.07°)
OKLab	oklab(87.11% -0.1106 -0.0373)
OKLCH	oklch(87.11% 0.117 198.6)
XYZ	xyz(51.3454, 69.1613, 93.8456)
Luminance	0.6917 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECF1 #F16B66

analogous

#66F1B0 #66ECF1 #66A7F1

triadic

#66ECF1 #F166EC #ECF166

tetradic

#66ECF1 #B066F1 #F16B66 #A7F166

square

#66ECF1 #B066F1 #F16B66 #A7F166

split-complementary

#66ECF1 #F166A7 #F1B066

monochromatic

#12C4CA #2EE5EC #66ECF1 #9EF3F6 #D6FAFB

Accessibility & contrast

On white

1.42

#66ECF1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.83

#66ECF1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECF1

14.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECF1	#FFFFFF	#000000	##000000
##66ECF1	1.00	1.42	14.83	14.83
#FFFFFF	1.42	1.00	21.00	21.00
#000000	14.83	21.00	1.00	1.00
##000000	14.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDE2F2

Deuteranopia (green-blind)

#C7D2F2

Tritanopia (blue-blind)

#00F3ED

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66ecf1;
/* rgb */ color: rgb(102, 236, 241);
/* oklch */ color: oklch(87.1% 0.117 198.6);

Tailwind

colors: {
  custom: {
    50: '#9ff2f5',
    500: '#66ecf1',
    950: '#000000',
  },
}

SCSS

$custom: #66ecf1;
$custom-light: #9ff2f5;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecf1",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 241
  },
  "hsl": {
    "h": 182.158,
    "s": 83.234,
    "l": 67.255
  },
  "oklch": {
    "l": 0.87114,
    "c": 0.11668,
    "h": 198.6
  },
  "luminance": 0.69167
}

Semantic roles & 50–950 ramp

primary

#66ECF1

secondary

#C73A34

accent

#0E06E0

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66ECF1

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

Preview Lab → · Contrast checker → · Palette generator →