#66EFF8#66EFF8

#66EFF8 is a very light, moderate teal. Relative luminance 0.713; OKLCH L 88.0% C 0.119 H 201.2°. Best body text is #000000 at 15.27:1 contrast (WCAG AA passes).

Color values

HEX	#66EFF8
RGB	rgb(102, 239, 248)
HSL	hsl(184, 91%, 69%)
HSV	hsv(184, 59%, 97%)
CMYK	cmyk(58.9%, 3.6%, 0%, 2.7%)
CIE-LAB	lab(87.64, -34.47, -15.55)
CIE-LCH	lch(87.64, 37.82, 204.27°)
OKLab	oklab(88.04% -0.1108 -0.043)
OKLCH	oklch(88.04% 0.119 201.2)
XYZ	xyz(53.2821, 71.3296, 99.7487)
Luminance	0.7134 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFF8 #F86F66

analogous

#66F8B8 #66EFF8 #66A6F8

triadic

#66EFF8 #F866EF #EFF866

tetradic

#66EFF8 #B866F8 #F86F66 #A6F866

square

#66EFF8 #B866F8 #F86F66 #A6F866

split-complementary

#66EFF8 #F866A6 #F8B866

monochromatic

#0ACDDA #2BE9F5 #66EFF8 #A1F5FB #DBFBFD

Accessibility & contrast

On white

1.38

#66EFF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.27

#66EFF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFF8

15.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFF8	#FFFFFF	#000000	##000000
##66EFF8	1.00	1.38	15.27	15.27
#FFFFFF	1.38	1.00	21.00	21.00
#000000	15.27	21.00	1.00	1.00
##000000	15.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFE5F9

Deuteranopia (green-blind)

#C8D5F9

Tritanopia (blue-blind)

#00F7F1

Achromatopsia (no color)

#DCDCDC

Design tokens & code

CSS

--color: #66eff8;
/* rgb */ color: rgb(102, 239, 248);
/* oklch */ color: oklch(88.0% 0.119 201.2);

Tailwind

colors: {
  custom: {
    50: '#a0f4fa',
    500: '#66eff8',
    950: '#000000',
  },
}

SCSS

$custom: #66eff8;
$custom-light: #a0f4fa;
$custom-dark: #000000;

JSON

{
  "hex": "#66eff8",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 248
  },
  "hsl": {
    "h": 183.699,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.88039,
    "c": 0.11886,
    "h": 201.2
  },
  "luminance": 0.71335
}

Semantic roles & 50–950 ramp

primary

#66EFF8

secondary

#D23B31

accent

#0E00E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101717

muted

#818585

Preview Lab

Preview with #66EFF8

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

Preview Lab → · Contrast checker → · Palette generator →