#66ECF8#66ECF8

#66ECF8 is a very light, moderate teal. Relative luminance 0.696; OKLCH L 87.4% C 0.117 H 203.4°. Best body text is #000000 at 14.92:1 contrast (WCAG AA passes).

Color values

HEX	#66ECF8
RGB	rgb(102, 236, 248)
HSL	hsl(185, 91%, 69%)
HSV	hsv(185, 59%, 97%)
CMYK	cmyk(58.9%, 4.8%, 0%, 2.7%)
CIE-LAB	lab(86.79, -33.06, -16.82)
CIE-LCH	lch(86.79, 37.10, 206.97°)
OKLab	oklab(87.35% -0.1077 -0.0466)
OKLCH	oklch(87.35% 0.117 203.4)
XYZ	xyz(52.4111, 69.5876, 99.4584)
Luminance	0.6959 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECF8 #F87266

analogous

#66F8BB #66ECF8 #66A3F8

triadic

#66ECF8 #F866EC #ECF866

tetradic

#66ECF8 #BB66F8 #F87266 #A3F866

square

#66ECF8 #BB66F8 #F87266 #A3F866

split-complementary

#66ECF8 #F866A3 #F8BB66

monochromatic

#0AC9DA #2BE5F5 #66ECF8 #A1F3FB #DBFBFD

Accessibility & contrast

On white

1.41

#66ECF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.92

#66ECF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECF8

14.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECF8	#FFFFFF	#000000	##000000
##66ECF8	1.00	1.41	14.92	14.92
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.92	21.00	1.00	1.00
##000000	14.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBE3F9

Deuteranopia (green-blind)

#C5D2F9

Tritanopia (blue-blind)

#00F5EF

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66ecf8;
/* rgb */ color: rgb(102, 236, 248);
/* oklch */ color: oklch(87.4% 0.117 203.4);

Tailwind

colors: {
  custom: {
    50: '#9ff2fa',
    500: '#66ecf8',
    950: '#000000',
  },
}

SCSS

$custom: #66ecf8;
$custom-light: #9ff2fa;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecf8",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 248
  },
  "hsl": {
    "h": 184.932,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.87353,
    "c": 0.11738,
    "h": 203.4
  },
  "luminance": 0.69593
}

Semantic roles & 50–950 ramp

primary

#66ECF8

secondary

#D23E31

accent

#1300E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101717

muted

#818585

Preview Lab

Preview with #66ECF8

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

Preview Lab → · Contrast checker → · Palette generator →