#66ECFF#66ECFF

#66ECFF is a very light, moderate teal. Relative luminance 0.700; OKLCH L 87.6% C 0.119 H 208.0°. Best body text is #000000 at 15.01:1 contrast (WCAG AA passes).

Color values

HEX	#66ECFF
RGB	rgb(102, 236, 255)
HSL	hsl(187, 100%, 70%)
HSV	hsv(187, 60%, 100%)
CMYK	cmyk(60%, 7.5%, 0%, 0%)
CIE-LAB	lab(87.01, -31.14, -20.17)
CIE-LCH	lch(87.01, 37.10, 212.93°)
OKLab	oklab(87.6% -0.105 -0.0559)
OKLCH	oklch(87.6% 0.119 208)
XYZ	xyz(53.5174, 70.0301, 105.2851)
Luminance	0.7004 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECFF #FF7966

analogous

#66FFC6 #66ECFF #669FFF

triadic

#66ECFF #FF66EC #ECFF66

tetradic

#66ECFF #C666FF #FF7966 #9FFF66

square

#66ECFF #C666FF #FF7966 #9FFF66

split-complementary

#66ECFF #FF669F #FFC666

monochromatic

#00CDEB #29E4FF #66ECFF #A3F4FF #E0FBFF

Accessibility & contrast

On white

1.40

#66ECFF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.01

#66ECFF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECFF

15.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECFF	#FFFFFF	#000000	##000000
##66ECFF	1.00	1.40	15.01	15.01
#FFFFFF	1.40	1.00	21.00	21.00
#000000	15.01	21.00	1.00	1.00
##000000	15.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAE4FF

Deuteranopia (green-blind)

#C3D3FF

Tritanopia (blue-blind)

#00F6F2

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #66ecff;
/* rgb */ color: rgb(102, 236, 255);
/* oklch */ color: oklch(87.6% 0.119 208.0);

Tailwind

colors: {
  custom: {
    50: '#a0f2ff',
    500: '#66ecff',
    950: '#000000',
  },
}

SCSS

$custom: #66ecff;
$custom-light: #a0f2ff;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecff",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 255
  },
  "hsl": {
    "h": 187.451,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.876,
    "c": 0.11893,
    "h": 208
  },
  "luminance": 0.70036
}

Semantic roles & 50–950 ramp

primary

#66ECFF

secondary

#DA442F

accent

#1D00E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101718

muted

#818586

Preview Lab

Preview with #66ECFF

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

Preview Lab → · Contrast checker → · Palette generator →