#66E6FC#66E6FC

#66E6FC is a very light, moderate teal. Relative luminance 0.664; OKLCH L 86.1% C 0.116 H 210.5°. Best body text is #000000 at 14.29:1 contrast (WCAG AA passes).

Color values

HEX	#66E6FC
RGB	rgb(102, 230, 252)
HSL	hsl(189, 96%, 69%)
HSV	hsv(189, 60%, 99%)
CMYK	cmyk(59.5%, 8.7%, 0%, 1.2%)
CIE-LAB	lab(85.22, -29.10, -21.30)
CIE-LCH	lch(85.22, 36.06, 216.20°)
OKLab	oklab(86.13% -0.1001 -0.059)
OKLCH	oklch(86.13% 0.116 210.5)
XYZ	xyz(51.3398, 66.4414, 102.1954)
Luminance	0.6645 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E6FC #FC7C66

analogous

#66FCC7 #66E6FC #669BFC

triadic

#66E6FC #FC66E6 #E6FC66

tetradic

#66E6FC #C766FC #FC7C66 #9BFC66

square

#66E6FC #C766FC #FC7C66 #9BFC66

split-complementary

#66E6FC #FC669B #FCC766

monochromatic

#04C2E3 #2ADCFB #66E6FC #A2F0FD #DEFAFE

Accessibility & contrast

On white

1.47

#66E6FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.29

#66E6FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E6FC

14.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E6FC	#FFFFFF	#000000	##000000
##66E6FC	1.00	1.47	14.29	14.29
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.29	21.00	1.00	1.00
##000000	14.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3DEFD

Deuteranopia (green-blind)

#BDCEFC

Tritanopia (blue-blind)

#00F0ED

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #66e6fc;
/* rgb */ color: rgb(102, 230, 252);
/* oklch */ color: oklch(86.1% 0.116 210.5);

Tailwind

colors: {
  custom: {
    50: '#9feefd',
    500: '#66e6fc',
    950: '#000000',
  },
}

SCSS

$custom: #66e6fc;
$custom-light: #9feefd;
$custom-dark: #000000;

JSON

{
  "hex": "#66e6fc",
  "rgb": {
    "r": 102,
    "g": 230,
    "b": 252
  },
  "hsl": {
    "h": 188.8,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.86128,
    "c": 0.11618,
    "h": 210.5
  },
  "luminance": 0.66447
}

Semantic roles & 50–950 ramp

primary

#66E6FC

secondary

#D64830

accent

#2200E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101617

muted

#818585

Preview Lab

Preview with #66E6FC

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

Preview Lab → · Contrast checker → · Palette generator →