#66EFF6#66EFF6

#66EFF6 is a very light, moderate teal. Relative luminance 0.712; OKLCH L 88.0% C 0.119 H 199.9°. Best body text is #000000 at 15.24:1 contrast (WCAG AA passes).

Color values

HEX	#66EFF6
RGB	rgb(102, 239, 246)
HSL	hsl(183, 89%, 68%)
HSV	hsv(183, 59%, 96%)
CMYK	cmyk(58.5%, 2.8%, 0%, 3.5%)
CIE-LAB	lab(87.58, -35.01, -14.59)
CIE-LCH	lch(87.58, 37.93, 202.62°)
OKLab	oklab(87.97% -0.1116 -0.0404)
OKLCH	oklch(87.97% 0.119 199.9)
XYZ	xyz(52.9735, 71.2061, 98.1233)
Luminance	0.7121 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFF6 #F66D66

analogous

#66F6B5 #66EFF6 #66A7F6

triadic

#66EFF6 #F666EF #EFF666

tetradic

#66EFF6 #B566F6 #F66D66 #A7F666

square

#66EFF6 #B566F6 #F66D66 #A7F666

split-complementary

#66EFF6 #F666A7 #F6B566

monochromatic

#0DCBD5 #2CE9F3 #66EFF6 #A0F5F9 #DAFBFD

Accessibility & contrast

On white

1.38

#66EFF6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.24

#66EFF6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFF6

15.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFF6	#FFFFFF	#000000	##000000
##66EFF6	1.00	1.38	15.24	15.24
#FFFFFF	1.38	1.00	21.00	21.00
#000000	15.24	21.00	1.00	1.00
##000000	15.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFE5F7

Deuteranopia (green-blind)

#C9D4F7

Tritanopia (blue-blind)

#00F7F1

Achromatopsia (no color)

#DCDCDC

Design tokens & code

CSS

--color: #66eff6;
/* rgb */ color: rgb(102, 239, 246);
/* oklch */ color: oklch(88.0% 0.119 199.9);

Tailwind

colors: {
  custom: {
    50: '#9ff4f9',
    500: '#66eff6',
    950: '#000000',
  },
}

SCSS

$custom: #66eff6;
$custom-light: #9ff4f9;
$custom-dark: #000000;

JSON

{
  "hex": "#66eff6",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 246
  },
  "hsl": {
    "h": 182.917,
    "s": 88.889,
    "l": 68.235
  },
  "oklch": {
    "l": 0.87971,
    "c": 0.11868,
    "h": 199.9
  },
  "luminance": 0.71212
}

Semantic roles & 50–950 ramp

primary

#66EFF6

secondary

#CF3931

accent

#0B00E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101717

muted

#818585

Preview Lab

Preview with #66EFF6

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

Preview Lab → · Contrast checker → · Palette generator →