#66F8F9#66F8F9

#66F8F9 is a very light, vivid teal. Relative luminance 0.768; OKLCH L 90.1% C 0.124 H 195.8°. Best body text is #000000 at 16.36:1 contrast (WCAG AA passes).

Color values

HEX	#66F8F9
RGB	rgb(102, 248, 249)
HSL	hsl(180, 92%, 69%)
HSV	hsv(180, 59%, 98%)
CMYK	cmyk(59%, 0.4%, 0%, 2.4%)
CIE-LAB	lab(90.23, -38.36, -12.20)
CIE-LCH	lch(90.23, 40.26, 197.65°)
OKLab	oklab(90.13% -0.1195 -0.0338)
OKLCH	oklch(90.13% 0.124 195.8)
XYZ	xyz(56.1384, 76.7933, 101.4682)
Luminance	0.7680 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F8F9 #F96766

analogous

#66F9B1 #66F8F9 #66AFF9

triadic

#66F8F9 #F966F8 #F8F966

tetradic

#66F8F9 #B166F9 #F96766 #AFF966

square

#66F8F9 #B166F9 #F96766 #AFF966

split-complementary

#66F8F9 #F966AF #F9B166

monochromatic

#09DBDC #2BF5F7 #66F8F9 #A1FBFB #DCFDFE

Accessibility & contrast

On white

1.28

#66F8F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.36

#66F8F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F8F9

16.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F8F9	#FFFFFF	#000000	##000000
##66F8F9	1.00	1.28	16.36	16.36
#FFFFFF	1.28	1.00	21.00	21.00
#000000	16.36	21.00	1.00	1.00
##000000	16.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9EDF9

Deuteranopia (green-blind)

#D1DCFA

Tritanopia (blue-blind)

#00FFF8

Achromatopsia (no color)

#E3E3E3

Design tokens & code

CSS

--color: #66f8f9;
/* rgb */ color: rgb(102, 248, 249);
/* oklch */ color: oklch(90.1% 0.124 195.8);

Tailwind

colors: {
  custom: {
    50: '#a1fbfb',
    500: '#66f8f9',
    950: '#000000',
  },
}

SCSS

$custom: #66f8f9;
$custom-light: #a1fbfb;
$custom-dark: #000000;

JSON

{
  "hex": "#66f8f9",
  "rgb": {
    "r": 102,
    "g": 248,
    "b": 249
  },
  "hsl": {
    "h": 180.408,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.90134,
    "c": 0.12419,
    "h": 195.8
  },
  "luminance": 0.76799
}

Semantic roles & 50–950 ramp

primary

#66F8F9

secondary

#D33230

accent

#0200E6

background

#FDFFFF

surface

#F7FFFF

border

#D0D7D7

text

#101717

muted

#818585

Preview Lab

Preview with #66F8F9

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

Preview Lab → · Contrast checker → · Palette generator →