#66EFF0#66EFF0

#66EFF0 is a very light, moderate teal. Relative luminance 0.708; OKLCH L 87.8% C 0.119 H 195.9°. Best body text is #000000 at 15.17:1 contrast (WCAG AA passes).

Color values

HEX	#66EFF0
RGB	rgb(102, 239, 240)
HSL	hsl(180, 82%, 67%)
HSV	hsv(180, 58%, 94%)
CMYK	cmyk(57.5%, 0.4%, 0%, 5.9%)
CIE-LAB	lab(87.41, -36.61, -11.71)
CIE-LCH	lch(87.41, 38.44, 197.73°)
OKLab	oklab(87.77% -0.114 -0.0324)
OKLCH	oklch(87.77% 0.119 195.9)
XYZ	xyz(52.0674, 70.8437, 93.3514)
Luminance	0.7085 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFF0 #F06766

analogous

#66F0AC #66EFF0 #66AAF0

triadic

#66EFF0 #F066EF #EFF066

tetradic

#66EFF0 #AC66F0 #F06766 #AAF066

square

#66EFF0 #AC66F0 #F06766 #AAF066

split-complementary

#66EFF0 #F066AA #F0AC66

monochromatic

#14C7C8 #2EE9EB #66EFF0 #9EF5F5 #D5FBFB

Accessibility & contrast

On white

1.38

#66EFF0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.17

#66EFF0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFF0

15.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFF0	#FFFFFF	#000000	##000000
##66EFF0	1.00	1.38	15.17	15.17
#FFFFFF	1.38	1.00	21.00	21.00
#000000	15.17	21.00	1.00	1.00
##000000	15.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1E5F0

Deuteranopia (green-blind)

#CAD4F1

Tritanopia (blue-blind)

#00F6EF

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #66eff0;
/* rgb */ color: rgb(102, 239, 240);
/* oklch */ color: oklch(87.8% 0.119 195.9);

Tailwind

colors: {
  custom: {
    50: '#9ff4f4',
    500: '#66eff0',
    950: '#000000',
  },
}

SCSS

$custom: #66eff0;
$custom-light: #9ff4f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66eff0",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 240
  },
  "hsl": {
    "h": 180.435,
    "s": 82.143,
    "l": 67.059
  },
  "oklch": {
    "l": 0.8777,
    "c": 0.11857,
    "h": 195.9
  },
  "luminance": 0.70849
}

Semantic roles & 50–950 ramp

primary

#66EFF0

secondary

#C53635

accent

#0907DF

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66EFF0

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

Preview Lab → · Contrast checker → · Palette generator →