#66ECF9#66ECF9

#66ECF9 is a very light, moderate teal. Relative luminance 0.697; OKLCH L 87.4% C 0.118 H 204.0°. Best body text is #000000 at 14.93:1 contrast (WCAG AA passes).

Color values

HEX	#66ECF9
RGB	rgb(102, 236, 249)
HSL	hsl(185, 92%, 69%)
HSV	hsv(185, 59%, 98%)
CMYK	cmyk(59%, 5.2%, 0%, 2.4%)
CIE-LAB	lab(86.82, -32.79, -17.30)
CIE-LCH	lch(86.82, 37.08, 207.82°)
OKLab	oklab(87.39% -0.1073 -0.0479)
OKLCH	oklch(87.39% 0.118 204)
XYZ	xyz(52.5666, 69.6498, 100.2776)
Luminance	0.6966 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECF9 #F97366

analogous

#66F9BD #66ECF9 #66A3F9

triadic

#66ECF9 #F966EC #ECF966

tetradic

#66ECF9 #BD66F9 #F97366 #A3F966

square

#66ECF9 #BD66F9 #F97366 #A3F966

split-complementary

#66ECF9 #F966A3 #F9BD66

monochromatic

#09C9DC #2BE5F7 #66ECF9 #A1F3FB #DCFBFE

Accessibility & contrast

On white

1.41

#66ECF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.93

#66ECF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECF9

14.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECF9	#FFFFFF	#000000	##000000
##66ECF9	1.00	1.41	14.93	14.93
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.93	21.00	1.00	1.00
##000000	14.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBE3FA

Deuteranopia (green-blind)

#C4D2FA

Tritanopia (blue-blind)

#00F5F0

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66ecf9;
/* rgb */ color: rgb(102, 236, 249);
/* oklch */ color: oklch(87.4% 0.118 204.0);

Tailwind

colors: {
  custom: {
    50: '#9ff2fb',
    500: '#66ecf9',
    950: '#000000',
  },
}

SCSS

$custom: #66ecf9;
$custom-light: #9ff2fb;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecf9",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 249
  },
  "hsl": {
    "h": 185.306,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.87388,
    "c": 0.11755,
    "h": 204
  },
  "luminance": 0.69655
}

Semantic roles & 50–950 ramp

primary

#66ECF9

secondary

#D33F30

accent

#1400E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101717

muted

#818585

Preview Lab

Preview with #66ECF9

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

Preview Lab → · Contrast checker → · Palette generator →