#66EEF9#66EEF9

#66EEF9 is a very light, moderate teal. Relative luminance 0.708; OKLCH L 87.8% C 0.118 H 202.6°. Best body text is #000000 at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#66EEF9
RGB	rgb(102, 238, 249)
HSL	hsl(184, 92%, 69%)
HSV	hsv(184, 59%, 98%)
CMYK	cmyk(59%, 4.4%, 0%, 2.4%)
CIE-LAB	lab(87.39, -33.73, -16.45)
CIE-LCH	lch(87.39, 37.53, 206.00°)
OKLab	oklab(87.85% -0.1094 -0.0455)
OKLCH	oklch(87.85% 0.118 202.6)
XYZ	xyz(53.1457, 70.8079, 100.4706)
Luminance	0.7081 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EEF9 #F97166

analogous

#66F9BB #66EEF9 #66A5F9

triadic

#66EEF9 #F966EE #EEF966

tetradic

#66EEF9 #BB66F9 #F97166 #A5F966

square

#66EEF9 #BB66F9 #F97166 #A5F966

split-complementary

#66EEF9 #F966A5 #F9BB66

monochromatic

#09CCDC #2BE7F7 #66EEF9 #A1F5FB #DCFBFE

Accessibility & contrast

On white

1.38

#66EEF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.16

#66EEF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EEF9

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EEF9	#FFFFFF	#000000	##000000
##66EEF9	1.00	1.38	15.16	15.16
#FFFFFF	1.38	1.00	21.00	21.00
#000000	15.16	21.00	1.00	1.00
##000000	15.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDE5FA

Deuteranopia (green-blind)

#C7D4FA

Tritanopia (blue-blind)

#00F6F1

Achromatopsia (no color)

#DBDBDB

Design tokens & code

CSS

--color: #66eef9;
/* rgb */ color: rgb(102, 238, 249);
/* oklch */ color: oklch(87.8% 0.118 202.6);

Tailwind

colors: {
  custom: {
    50: '#a0f4fb',
    500: '#66eef9',
    950: '#000000',
  },
}

SCSS

$custom: #66eef9;
$custom-light: #a0f4fb;
$custom-dark: #000000;

JSON

{
  "hex": "#66eef9",
  "rgb": {
    "r": 102,
    "g": 238,
    "b": 249
  },
  "hsl": {
    "h": 184.49,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.87845,
    "c": 0.11848,
    "h": 202.6
  },
  "luminance": 0.70813
}

Semantic roles & 50–950 ramp

primary

#66EEF9

secondary

#D33D30

accent

#1100E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101717

muted

#818585

Preview Lab

Preview with #66EEF9

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

Preview Lab → · Contrast checker → · Palette generator →