#66EFF5#66EFF5

#66EFF5 is a very light, moderate teal. Relative luminance 0.712; OKLCH L 87.9% C 0.119 H 199.2°. Best body text is #000000 at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#66EFF5
RGB	rgb(102, 239, 245)
HSL	hsl(183, 88%, 68%)
HSV	hsv(183, 58%, 96%)
CMYK	cmyk(58.4%, 2.4%, 0%, 3.9%)
CIE-LAB	lab(87.56, -35.28, -14.11)
CIE-LCH	lch(87.56, 38.00, 201.80°)
OKLab	oklab(87.94% -0.112 -0.039)
OKLCH	oklch(87.94% 0.119 199.2)
XYZ	xyz(52.8204, 71.1449, 97.3172)
Luminance	0.7115 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFF5 #F56C66

analogous

#66F5B3 #66EFF5 #66A8F5

triadic

#66EFF5 #F566EF #EFF566

tetradic

#66EFF5 #B366F5 #F56C66 #A8F566

square

#66EFF5 #B366F5 #F56C66 #A8F566

split-complementary

#66EFF5 #F566A8 #F5B366

monochromatic

#0ECBD3 #2DE9F1 #66EFF5 #9FF5F9 #D9FBFD

Accessibility & contrast

On white

1.38

#66EFF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.23

#66EFF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFF5

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFF5	#FFFFFF	#000000	##000000
##66EFF5	1.00	1.38	15.23	15.23
#FFFFFF	1.38	1.00	21.00	21.00
#000000	15.23	21.00	1.00	1.00
##000000	15.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0E5F6

Deuteranopia (green-blind)

#C9D4F6

Tritanopia (blue-blind)

#00F7F0

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #66eff5;
/* rgb */ color: rgb(102, 239, 245);
/* oklch */ color: oklch(87.9% 0.119 199.2);

Tailwind

colors: {
  custom: {
    50: '#9ff4f8',
    500: '#66eff5',
    950: '#000000',
  },
}

SCSS

$custom: #66eff5;
$custom-light: #9ff4f8;
$custom-dark: #000000;

JSON

{
  "hex": "#66eff5",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 245
  },
  "hsl": {
    "h": 182.517,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.87937,
    "c": 0.11862,
    "h": 199.2
  },
  "luminance": 0.7115
}

Semantic roles & 50–950 ramp

primary

#66EFF5

secondary

#CE3831

accent

#0B01E4

background

#FDFFFF

surface

#F7FEFE

border

#D0D6D6

text

#101717

muted

#818585

Preview Lab

Preview with #66EFF5

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

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