#66EEF5#66EEF5

#66EEF5 is a very light, moderate teal. Relative luminance 0.706; OKLCH L 87.7% C 0.118 H 199.9°. Best body text is #000000 at 15.11:1 contrast (WCAG AA passes).

Color values

HEX	#66EEF5
RGB	rgb(102, 238, 245)
HSL	hsl(183, 88%, 68%)
HSV	hsv(183, 58%, 96%)
CMYK	cmyk(58.4%, 2.9%, 0%, 3.9%)
CIE-LAB	lab(87.27, -34.82, -14.53)
CIE-LCH	lch(87.27, 37.73, 202.66°)
OKLab	oklab(87.71% -0.111 -0.0402)
OKLCH	oklch(87.71% 0.118 199.9)
XYZ	xyz(52.5285, 70.5610, 97.2199)
Luminance	0.7057 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EEF5 #F56D66

analogous

#66F5B4 #66EEF5 #66A6F5

triadic

#66EEF5 #F566EE #EEF566

tetradic

#66EEF5 #B466F5 #F56D66 #A6F566

square

#66EEF5 #B466F5 #F56D66 #A6F566

split-complementary

#66EEF5 #F566A6 #F5B466

monochromatic

#0EC9D3 #2DE8F1 #66EEF5 #9FF4F9 #D9FBFD

Accessibility & contrast

On white

1.39

#66EEF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.11

#66EEF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EEF5

15.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EEF5	#FFFFFF	#000000	##000000
##66EEF5	1.00	1.39	15.11	15.11
#FFFFFF	1.39	1.00	21.00	21.00
#000000	15.11	21.00	1.00	1.00
##000000	15.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEE4F6

Deuteranopia (green-blind)

#C8D4F6

Tritanopia (blue-blind)

#00F6F0

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #66eef5;
/* rgb */ color: rgb(102, 238, 245);
/* oklch */ color: oklch(87.7% 0.118 199.9);

Tailwind

colors: {
  custom: {
    50: '#9ff4f8',
    500: '#66eef5',
    950: '#000000',
  },
}

SCSS

$custom: #66eef5;
$custom-light: #9ff4f8;
$custom-dark: #000000;

JSON

{
  "hex": "#66eef5",
  "rgb": {
    "r": 102,
    "g": 238,
    "b": 245
  },
  "hsl": {
    "h": 182.937,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.87708,
    "c": 0.11806,
    "h": 199.9
  },
  "luminance": 0.70566
}

Semantic roles & 50–950 ramp

primary

#66EEF5

secondary

#CE3931

accent

#0C01E4

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66EEF5

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

Preview Lab → · Contrast checker → · Palette generator →