#66E9FC#66E9FC

#66E9FC is a very light, moderate teal. Relative luminance 0.681; OKLCH L 86.8% C 0.117 H 208.3°. Best body text is #000000 at 14.63:1 contrast (WCAG AA passes).

Color values

HEX	#66E9FC
RGB	rgb(102, 233, 252)
HSL	hsl(188, 96%, 69%)
HSV	hsv(188, 60%, 99%)
CMYK	cmyk(59.5%, 7.5%, 0%, 1.2%)
CIE-LAB	lab(86.07, -30.54, -20.02)
CIE-LCH	lch(86.07, 36.51, 213.24°)
OKLab	oklab(86.81% -0.1031 -0.0555)
OKLCH	oklch(86.81% 0.117 208.3)
XYZ	xyz(52.1818, 68.1255, 102.4761)
Luminance	0.6813 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E9FC #FC7966

analogous

#66FCC4 #66E9FC #669EFC

triadic

#66E9FC #FC66E9 #E9FC66

tetradic

#66E9FC #C466FC #FC7966 #9EFC66

square

#66E9FC #C466FC #FC7966 #9EFC66

split-complementary

#66E9FC #FC669E #FCC466

monochromatic

#04C7E3 #2AE0FB #66E9FC #A2F2FD #DEFAFE

Accessibility & contrast

On white

1.44

#66E9FC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.63

#66E9FC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E9FC

14.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E9FC	#FFFFFF	#000000	##000000
##66E9FC	1.00	1.44	14.63	14.63
#FFFFFF	1.44	1.00	21.00	21.00
#000000	14.63	21.00	1.00	1.00
##000000	14.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D7E1FD

Deuteranopia (green-blind)

#C0D0FC

Tritanopia (blue-blind)

#00F2EF

Achromatopsia (no color)

#D7D7D7

Design tokens & code

CSS

--color: #66e9fc;
/* rgb */ color: rgb(102, 233, 252);
/* oklch */ color: oklch(86.8% 0.117 208.3);

Tailwind

colors: {
  custom: {
    50: '#9ff0fd',
    500: '#66e9fc',
    950: '#000000',
  },
}

SCSS

$custom: #66e9fc;
$custom-light: #9ff0fd;
$custom-dark: #000000;

JSON

{
  "hex": "#66e9fc",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 252
  },
  "hsl": {
    "h": 187.6,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.8681,
    "c": 0.11708,
    "h": 208.3
  },
  "luminance": 0.68131
}

Semantic roles & 50–950 ramp

primary

#66E9FC

secondary

#D64530

accent

#1D00E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101617

muted

#818585

Preview Lab

Preview with #66E9FC

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

Preview Lab → · Contrast checker → · Palette generator →