#66EFF4#66EFF4

#66EFF4 is a very light, moderate teal. Relative luminance 0.711; OKLCH L 87.9% C 0.119 H 198.6°. Best body text is #000000 at 15.22:1 contrast (WCAG AA passes).

Color values

HEX	#66EFF4
RGB	rgb(102, 239, 244)
HSL	hsl(182, 87%, 68%)
HSV	hsv(182, 58%, 96%)
CMYK	cmyk(58.2%, 2%, 0%, 4.3%)
CIE-LAB	lab(87.53, -35.55, -13.63)
CIE-LCH	lch(87.53, 38.07, 200.98°)
OKLab	oklab(87.9% -0.1124 -0.0377)
OKLCH	oklch(87.9% 0.119 198.6)
XYZ	xyz(52.6682, 71.0840, 96.5154)
Luminance	0.7109 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFF4 #F46B66

analogous

#66F4B2 #66EFF4 #66A8F4

triadic

#66EFF4 #F466EF #EFF466

tetradic

#66EFF4 #B266F4 #F46B66 #A8F466

square

#66EFF4 #B266F4 #F46B66 #A8F466

split-complementary

#66EFF4 #F466A8 #F4B266

monochromatic

#0FCAD1 #2DE9F0 #66EFF4 #9FF5F8 #D8FBFC

Accessibility & contrast

On white

1.38

#66EFF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.22

#66EFF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFF4

15.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFF4	#FFFFFF	#000000	##000000
##66EFF4	1.00	1.38	15.22	15.22
#FFFFFF	1.38	1.00	21.00	21.00
#000000	15.22	21.00	1.00	1.00
##000000	15.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0E5F5

Deuteranopia (green-blind)

#C9D4F5

Tritanopia (blue-blind)

#00F7F0

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #66eff4;
/* rgb */ color: rgb(102, 239, 244);
/* oklch */ color: oklch(87.9% 0.119 198.6);

Tailwind

colors: {
  custom: {
    50: '#9ff4f7',
    500: '#66eff4',
    950: '#000000',
  },
}

SCSS

$custom: #66eff4;
$custom-light: #9ff4f7;
$custom-dark: #000000;

JSON

{
  "hex": "#66eff4",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 244
  },
  "hsl": {
    "h": 182.113,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.87903,
    "c": 0.11858,
    "h": 198.6
  },
  "luminance": 0.71089
}

Semantic roles & 50–950 ramp

primary

#66EFF4

secondary

#CC3732

accent

#0A02E3

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66EFF4

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

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