#66E9F4#66E9F4

#66E9F4 is a very light, moderate teal. Relative luminance 0.676; OKLCH L 86.5% C 0.115 H 202.9°. Best body text is #000000 at 14.53:1 contrast (WCAG AA passes).

Color values

HEX	#66E9F4
RGB	rgb(102, 233, 244)
HSL	hsl(185, 87%, 68%)
HSV	hsv(185, 58%, 96%)
CMYK	cmyk(58.2%, 4.5%, 0%, 4.3%)
CIE-LAB	lab(85.82, -32.74, -16.19)
CIE-LCH	lch(85.82, 36.52, 206.31°)
OKLab	oklab(86.53% -0.1063 -0.0448)
OKLCH	oklch(86.53% 0.115 202.9)
XYZ	xyz(50.9407, 67.6291, 95.9395)
Luminance	0.6763 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E9F4 #F47166

analogous

#66F4B8 #66E9F4 #66A2F4

triadic

#66E9F4 #F466E9 #E9F466

tetradic

#66E9F4 #B866F4 #F47166 #A2F466

square

#66E9F4 #B866F4 #F47166 #A2F466

split-complementary

#66E9F4 #F466A2 #F4B866

monochromatic

#0FC2D1 #2DE1F0 #66E9F4 #9FF1F8 #D8F9FC

Accessibility & contrast

On white

1.45

#66E9F4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.53

#66E9F4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E9F4

14.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E9F4	#FFFFFF	#000000	##000000
##66E9F4	1.00	1.45	14.53	14.53
#FFFFFF	1.45	1.00	21.00	21.00
#000000	14.53	21.00	1.00	1.00
##000000	14.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9E0F5

Deuteranopia (green-blind)

#C3D0F5

Tritanopia (blue-blind)

#00F1EC

Achromatopsia (no color)

#D7D7D7

Design tokens & code

CSS

--color: #66e9f4;
/* rgb */ color: rgb(102, 233, 244);
/* oklch */ color: oklch(86.5% 0.115 202.9);

Tailwind

colors: {
  custom: {
    50: '#9ff0f7',
    500: '#66e9f4',
    950: '#000000',
  },
}

SCSS

$custom: #66e9f4;
$custom-light: #9ff0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#66e9f4",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 244
  },
  "hsl": {
    "h": 184.648,
    "s": 86.585,
    "l": 67.843
  },
  "oklch": {
    "l": 0.86528,
    "c": 0.11533,
    "h": 202.9
  },
  "luminance": 0.67634
}

Semantic roles & 50–950 ramp

primary

#66E9F4

secondary

#CC3E32

accent

#1402E3

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101617

muted

#818585

Preview Lab

Preview with #66E9F4

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

Preview Lab → · Contrast checker → · Palette generator →