#66EFFD#66EFFD

#66EFFD is a very light, moderate teal. Relative luminance 0.717; OKLCH L 88.2% C 0.120 H 204.5°. Best body text is #000000 at 15.33:1 contrast (WCAG AA passes).

Color values

HEX	#66EFFD
RGB	rgb(102, 239, 253)
HSL	hsl(186, 97%, 70%)
HSV	hsv(186, 60%, 99%)
CMYK	cmyk(59.7%, 5.5%, 0%, 0.8%)
CIE-LAB	lab(87.80, -33.11, -17.93)
CIE-LCH	lch(87.80, 37.66, 208.44°)
OKLab	oklab(88.21% -0.1088 -0.0497)
OKLCH	oklch(88.21% 0.12 204.5)
XYZ	xyz(54.0682, 71.6440, 103.8887)
Luminance	0.7165 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFFD #FD7466

analogous

#66FDC0 #66EFFD #66A4FD

triadic

#66EFFD #FD66EF #EFFD66

tetradic

#66EFFD #C066FD #FD7466 #A4FD66

square

#66EFFD #C066FD #FD7466 #A4FD66

split-complementary

#66EFFD #FD66A4 #FDC066

monochromatic

#03D1E6 #2AE9FC #66EFFD #A2F5FE #DFFCFF

Accessibility & contrast

On white

1.37

#66EFFD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.33

#66EFFD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFFD

15.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFFD	#FFFFFF	#000000	##000000
##66EFFD	1.00	1.37	15.33	15.33
#FFFFFF	1.37	1.00	21.00	21.00
#000000	15.33	21.00	1.00	1.00
##000000	15.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEE6FE

Deuteranopia (green-blind)

#C6D5FE

Tritanopia (blue-blind)

#00F8F3

Achromatopsia (no color)

#DCDCDC

Design tokens & code

CSS

--color: #66effd;
/* rgb */ color: rgb(102, 239, 253);
/* oklch */ color: oklch(88.2% 0.120 204.5);

Tailwind

colors: {
  custom: {
    50: '#a0f4fe',
    500: '#66effd',
    950: '#000000',
  },
}

SCSS

$custom: #66effd;
$custom-light: #a0f4fe;
$custom-dark: #000000;

JSON

{
  "hex": "#66effd",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 253
  },
  "hsl": {
    "h": 185.563,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.88212,
    "c": 0.1196,
    "h": 204.5
  },
  "luminance": 0.7165
}

Semantic roles & 50–950 ramp

primary

#66EFFD

secondary

#D83F2F

accent

#1500E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101717

muted

#818585

Preview Lab

Preview with #66EFFD

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

Preview Lab → · Contrast checker → · Palette generator →