#66F9FD#66F9FD

#66F9FD is a very light, vivid teal. Relative luminance 0.777; OKLCH L 90.5% C 0.125 H 197.7°. Best body text is #000000 at 16.53:1 contrast (WCAG AA passes).

Color values

HEX	#66F9FD
RGB	rgb(102, 249, 253)
HSL	hsl(182, 97%, 70%)
HSV	hsv(182, 60%, 99%)
CMYK	cmyk(59.7%, 1.6%, 0%, 0.8%)
CIE-LAB	lab(90.63, -37.76, -13.69)
CIE-LCH	lch(90.63, 40.16, 199.93°)
OKLab	oklab(90.5% -0.1189 -0.0379)
OKLCH	oklch(90.5% 0.125 197.7)
XYZ	xyz(57.0771, 77.6620, 104.8917)
Luminance	0.7767 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F9FD #FD6A66

analogous

#66FDB5 #66F9FD #66AEFD

triadic

#66F9FD #FD66F9 #F9FD66

tetradic

#66F9FD #B566FD #FD6A66 #AEFD66

square

#66F9FD #B566FD #FD6A66 #AEFD66

split-complementary

#66F9FD #FD66AE #FDB566

monochromatic

#03E0E6 #2AF7FC #66F9FD #A2FBFE #DFFEFF

Accessibility & contrast

On white

1.27

#66F9FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.53

#66F9FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F9FD

16.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F9FD	#FFFFFF	#000000	##000000
##66F9FD	1.00	1.27	16.53	16.53
#FFFFFF	1.27	1.00	21.00	21.00
#000000	16.53	21.00	1.00	1.00
##000000	16.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9EEFE

Deuteranopia (green-blind)

#D1DDFE

Tritanopia (blue-blind)

#00FFFA

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #66f9fd;
/* rgb */ color: rgb(102, 249, 253);
/* oklch */ color: oklch(90.5% 0.125 197.7);

Tailwind

colors: {
  custom: {
    50: '#a1fbfe',
    500: '#66f9fd',
    950: '#000000',
  },
}

SCSS

$custom: #66f9fd;
$custom-light: #a1fbfe;
$custom-dark: #000000;

JSON

{
  "hex": "#66f9fd",
  "rgb": {
    "r": 102,
    "g": 249,
    "b": 253
  },
  "hsl": {
    "h": 181.589,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.90495,
    "c": 0.12476,
    "h": 197.7
  },
  "luminance": 0.77668
}

Semantic roles & 50–950 ramp

primary

#66F9FD

secondary

#D8342F

accent

#0600E6

background

#FDFFFF

surface

#F7FFFF

border

#D0D7D7

text

#101717

muted

#818585

Preview Lab

Preview with #66F9FD

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

Preview Lab → · Contrast checker → · Palette generator →