#66F5EF#66F5EF

#66F5EF is a very light, vivid teal. Relative luminance 0.744; OKLCH L 89.1% C 0.123 H 191.3°. Best body text is #000000 at 15.87:1 contrast (WCAG AA passes).

Color values

HEX	#66F5EF
RGB	rgb(102, 245, 239)
HSL	hsl(177, 88%, 68%)
HSV	hsv(177, 58%, 96%)
CMYK	cmyk(58.4%, 0%, 2.4%, 3.9%)
CIE-LAB	lab(89.09, -39.62, -8.68)
CIE-LCH	lch(89.09, 40.56, 192.36°)
OKLab	oklab(89.12% -0.1206 -0.0242)
OKLCH	oklch(89.12% 0.123 191.3)
XYZ	xyz(53.7051, 74.3560, 93.1665)
Luminance	0.7436 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F5EF #F5666C

analogous

#66F5A8 #66F5EF #66B3F5

triadic

#66F5EF #EF66F5 #F5EF66

tetradic

#66F5EF #A866F5 #F5666C #B3F566

square

#66F5EF #A866F5 #F5666C #B3F566

split-complementary

#66F5EF #F566B3 #F5A866

monochromatic

#0ED3CB #2DF1E9 #66F5EF #9FF9F5 #D9FDFB

Accessibility & contrast

On white

1.32

#66F5EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.87

#66F5EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F5EF

15.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F5EF	#FFFFFF	#000000	##000000
##66F5EF	1.00	1.32	15.87	15.87
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.87	21.00	1.00	1.00
##000000	15.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E8E9EF

Deuteranopia (green-blind)

#D1D9F0

Tritanopia (blue-blind)

#00FBF3

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #66f5ef;
/* rgb */ color: rgb(102, 245, 239);
/* oklch */ color: oklch(89.1% 0.123 191.3);

Tailwind

colors: {
  custom: {
    50: '#a0f9f4',
    500: '#66f5ef',
    950: '#000000',
  },
}

SCSS

$custom: #66f5ef;
$custom-light: #a0f9f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66f5ef",
  "rgb": {
    "r": 102,
    "g": 245,
    "b": 239
  },
  "hsl": {
    "h": 177.483,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.89121,
    "c": 0.12298,
    "h": 191.3
  },
  "luminance": 0.74362
}

Semantic roles & 50–950 ramp

primary

#66F5EF

secondary

#CE3138

accent

#010BE4

background

#FDFFFF

surface

#F7FFFE

border

#D0D7D6

text

#101717

muted

#818585

Preview Lab

Preview with #66F5EF

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

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