#66EEF4#66EEF4

#66EEF4 is a very light, moderate teal. Relative luminance 0.705; OKLCH L 87.7% C 0.118 H 199.3°. Best body text is #000000 at 15.10:1 contrast (WCAG AA passes).

Color values

HEX	#66EEF4
RGB	rgb(102, 238, 244)
HSL	hsl(183, 87%, 68%)
HSV	hsv(183, 58%, 96%)
CMYK	cmyk(58.2%, 2.5%, 0%, 4.3%)
CIE-LAB	lab(87.24, -35.08, -14.05)
CIE-LCH	lch(87.24, 37.79, 201.83°)
OKLab	oklab(87.67% -0.1114 -0.0389)
OKLCH	oklch(87.67% 0.118 199.3)
XYZ	xyz(52.3762, 70.5001, 96.4180)
Luminance	0.7051 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EEF4 #F46C66

analogous

#66F4B3 #66EEF4 #66A7F4

triadic

#66EEF4 #F466EE #EEF466

tetradic

#66EEF4 #B366F4 #F46C66 #A7F466

square

#66EEF4 #B366F4 #F46C66 #A7F466

split-complementary

#66EEF4 #F466A7 #F4B366

monochromatic

#0FC8D1 #2DE8F0 #66EEF4 #9FF4F8 #D8FBFC

Accessibility & contrast

On white

1.39

#66EEF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.10

#66EEF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EEF4

15.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EEF4	#FFFFFF	#000000	##000000
##66EEF4	1.00	1.39	15.10	15.10
#FFFFFF	1.39	1.00	21.00	21.00
#000000	15.10	21.00	1.00	1.00
##000000	15.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFE4F5

Deuteranopia (green-blind)

#C8D4F5

Tritanopia (blue-blind)

#00F6EF

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #66eef4;
/* rgb */ color: rgb(102, 238, 244);
/* oklch */ color: oklch(87.7% 0.118 199.3);

Tailwind

colors: {
  custom: {
    50: '#9ff4f7',
    500: '#66eef4',
    950: '#000000',
  },
}

SCSS

$custom: #66eef4;
$custom-light: #9ff4f7;
$custom-dark: #000000;

JSON

{
  "hex": "#66eef4",
  "rgb": {
    "r": 102,
    "g": 238,
    "b": 244
  },
  "hsl": {
    "h": 182.535,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.87674,
    "c": 0.11799,
    "h": 199.3
  },
  "luminance": 0.70506
}

Semantic roles & 50–950 ramp

primary

#66EEF4

secondary

#CC3932

accent

#0C02E3

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66EEF4

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

Preview Lab → · Contrast checker → · Palette generator →