#66E4FC#66E4FC

#66E4FC is a very light, moderate teal. Relative luminance 0.653; OKLCH L 85.7% C 0.116 H 212.1°. Best body text is #000000 at 14.07:1 contrast (WCAG AA passes).

Color values

HEX	#66E4FC
RGB	rgb(102, 228, 252)
HSL	hsl(190, 96%, 69%)
HSV	hsv(190, 60%, 99%)
CMYK	cmyk(59.5%, 9.5%, 0%, 1.2%)
CIE-LAB	lab(84.66, -28.13, -22.16)
CIE-LCH	lch(84.66, 35.81, 218.23°)
OKLab	oklab(85.67% -0.098 -0.0614)
OKLCH	oklch(85.67% 0.116 212.1)
XYZ	xyz(50.7864, 65.3347, 102.0110)
Luminance	0.6534 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E4FC #FC7E66

analogous

#66FCC9 #66E4FC #6699FC

triadic

#66E4FC #FC66E4 #E4FC66

tetradic

#66E4FC #C966FC #FC7E66 #99FC66

square

#66E4FC #C966FC #FC7E66 #99FC66

split-complementary

#66E4FC #FC6699 #FCC966

monochromatic

#04C0E3 #2AD9FB #66E4FC #A2EFFD #DEF9FE

Accessibility & contrast

On white

1.49

#66E4FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.07

#66E4FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E4FC

14.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E4FC	#FFFFFF	#000000	##000000
##66E4FC	1.00	1.49	14.07	14.07
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.07	21.00	1.00	1.00
##000000	14.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1DDFD

Deuteranopia (green-blind)

#BBCCFC

Tritanopia (blue-blind)

#00EEEB

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66e4fc;
/* rgb */ color: rgb(102, 228, 252);
/* oklch */ color: oklch(85.7% 0.116 212.1);

Tailwind

colors: {
  custom: {
    50: '#9fecfd',
    500: '#66e4fc',
    950: '#000000',
  },
}

SCSS

$custom: #66e4fc;
$custom-light: #9fecfd;
$custom-dark: #000000;

JSON

{
  "hex": "#66e4fc",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 252
  },
  "hsl": {
    "h": 189.6,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.85674,
    "c": 0.11568,
    "h": 212.1
  },
  "luminance": 0.6534
}

Semantic roles & 50–950 ramp

primary

#66E4FC

secondary

#D64A30

accent

#2500E6

background

#FDFEFF

surface

#F7FDFF

border

#D0D5D7

text

#101617

muted

#818485

Preview Lab

Preview with #66E4FC

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

Preview Lab → · Contrast checker → · Palette generator →