#66E8FC#66E8FC

#66E8FC is a very light, moderate teal. Relative luminance 0.676; OKLCH L 86.6% C 0.117 H 209.0°. Best body text is #000000 at 14.51:1 contrast (WCAG AA passes).

Color values

HEX	#66E8FC
RGB	rgb(102, 232, 252)
HSL	hsl(188, 96%, 69%)
HSV	hsv(188, 60%, 99%)
CMYK	cmyk(59.5%, 7.9%, 0%, 1.2%)
CIE-LAB	lab(85.79, -30.06, -20.44)
CIE-LCH	lch(85.79, 36.35, 214.22°)
OKLab	oklab(86.58% -0.1021 -0.0566)
OKLCH	oklch(86.58% 0.117 209)
XYZ	xyz(51.8995, 67.5610, 102.3820)
Luminance	0.6757 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E8FC #FC7A66

analogous

#66FCC5 #66E8FC #669DFC

triadic

#66E8FC #FC66E8 #E8FC66

tetradic

#66E8FC #C566FC #FC7A66 #9DFC66

square

#66E8FC #C566FC #FC7A66 #9DFC66

split-complementary

#66E8FC #FC669D #FCC566

monochromatic

#04C5E3 #2ADFFB #66E8FC #A2F1FD #DEFAFE

Accessibility & contrast

On white

1.45

#66E8FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.51

#66E8FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E8FC

14.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E8FC	#FFFFFF	#000000	##000000
##66E8FC	1.00	1.45	14.51	14.51
#FFFFFF	1.45	1.00	21.00	21.00
#000000	14.51	21.00	1.00	1.00
##000000	14.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6E0FD

Deuteranopia (green-blind)

#BFCFFC

Tritanopia (blue-blind)

#00F2EE

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #66e8fc;
/* rgb */ color: rgb(102, 232, 252);
/* oklch */ color: oklch(86.6% 0.117 209.0);

Tailwind

colors: {
  custom: {
    50: '#9feffd',
    500: '#66e8fc',
    950: '#000000',
  },
}

SCSS

$custom: #66e8fc;
$custom-light: #9feffd;
$custom-dark: #000000;

JSON

{
  "hex": "#66e8fc",
  "rgb": {
    "r": 102,
    "g": 232,
    "b": 252
  },
  "hsl": {
    "h": 188,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.86583,
    "c": 0.11675,
    "h": 209
  },
  "luminance": 0.67566
}

Semantic roles & 50–950 ramp

primary

#66E8FC

secondary

#D64630

accent

#1F00E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101617

muted

#818585

Preview Lab

Preview with #66E8FC

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

Preview Lab → · Contrast checker → · Palette generator →