#66ECF5#66ECF5

#66ECF5 is a very light, moderate teal. Relative luminance 0.694; OKLCH L 87.2% C 0.117 H 201.3°. Best body text is #000000 at 14.88:1 contrast (WCAG AA passes).

Color values

HEX	#66ECF5
RGB	rgb(102, 236, 245)
HSL	hsl(184, 88%, 68%)
HSV	hsv(184, 58%, 96%)
CMYK	cmyk(58.4%, 3.7%, 0%, 3.9%)
CIE-LAB	lab(86.70, -33.88, -15.39)
CIE-LCH	lch(86.70, 37.21, 204.42°)
OKLab	oklab(87.25% -0.1089 -0.0426)
OKLCH	oklch(87.25% 0.117 201.3)
XYZ	xyz(51.9494, 69.4029, 97.0268)
Luminance	0.6941 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECF5 #F56F66

analogous

#66F5B6 #66ECF5 #66A4F5

triadic

#66ECF5 #F566EC #ECF566

tetradic

#66ECF5 #B666F5 #F56F66 #A4F566

square

#66ECF5 #B666F5 #F56F66 #A4F566

split-complementary

#66ECF5 #F566A4 #F5B666

monochromatic

#0EC6D3 #2DE5F1 #66ECF5 #9FF3F9 #D9FAFD

Accessibility & contrast

On white

1.41

#66ECF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.88

#66ECF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECF5

14.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECF5	#FFFFFF	#000000	##000000
##66ECF5	1.00	1.41	14.88	14.88
#FFFFFF	1.41	1.00	21.00	21.00
#000000	14.88	21.00	1.00	1.00
##000000	14.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCE3F6

Deuteranopia (green-blind)

#C6D2F6

Tritanopia (blue-blind)

#00F4EE

Achromatopsia (no color)

#D9D9D9

Design tokens & code

CSS

--color: #66ecf5;
/* rgb */ color: rgb(102, 236, 245);
/* oklch */ color: oklch(87.2% 0.117 201.3);

Tailwind

colors: {
  custom: {
    50: '#9ff2f8',
    500: '#66ecf5',
    950: '#000000',
  },
}

SCSS

$custom: #66ecf5;
$custom-light: #9ff2f8;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecf5",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 245
  },
  "hsl": {
    "h": 183.776,
    "s": 87.73,
    "l": 68.039
  },
  "oklch": {
    "l": 0.87249,
    "c": 0.11698,
    "h": 201.3
  },
  "luminance": 0.69408
}

Semantic roles & 50–950 ramp

primary

#66ECF5

secondary

#CE3B31

accent

#0F01E4

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101717

muted

#818585

Preview Lab

Preview with #66ECF5

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

Preview Lab → · Contrast checker → · Palette generator →