#66EAF9#66EAF9

#66EAF9 is a very light, moderate teal. Relative luminance 0.685; OKLCH L 86.9% C 0.117 H 205.5°. Best body text is #000000 at 14.70:1 contrast (WCAG AA passes).

Color values

HEX	#66EAF9
RGB	rgb(102, 234, 249)
HSL	hsl(186, 92%, 69%)
HSV	hsv(186, 59%, 98%)
CMYK	cmyk(59%, 6%, 0%, 2.4%)
CIE-LAB	lab(86.26, -31.84, -18.16)
CIE-LCH	lch(86.26, 36.66, 209.69°)
OKLab	oklab(86.93% -0.1053 -0.0503)
OKLCH	oklch(86.93% 0.117 205.5)
XYZ	xyz(51.9941, 68.5046, 100.0868)
Luminance	0.6851 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EAF9 #F97566

analogous

#66F9BE #66EAF9 #66A1F9

triadic

#66EAF9 #F966EA #EAF966

tetradic

#66EAF9 #BE66F9 #F97566 #A1F966

square

#66EAF9 #BE66F9 #F97566 #A1F966

split-complementary

#66EAF9 #F966A1 #F9BE66

monochromatic

#09C6DC #2BE2F7 #66EAF9 #A1F2FB #DCFAFE

Accessibility & contrast

On white

1.43

#66EAF9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.70

#66EAF9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EAF9

14.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EAF9	#FFFFFF	#000000	##000000
##66EAF9	1.00	1.43	14.70	14.70
#FFFFFF	1.43	1.00	21.00	21.00
#000000	14.70	21.00	1.00	1.00
##000000	14.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9E1FA

Deuteranopia (green-blind)

#C2D1F9

Tritanopia (blue-blind)

#00F3EE

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #66eaf9;
/* rgb */ color: rgb(102, 234, 249);
/* oklch */ color: oklch(86.9% 0.117 205.5);

Tailwind

colors: {
  custom: {
    50: '#9ff1fb',
    500: '#66eaf9',
    950: '#000000',
  },
}

SCSS

$custom: #66eaf9;
$custom-light: #9ff1fb;
$custom-dark: #000000;

JSON

{
  "hex": "#66eaf9",
  "rgb": {
    "r": 102,
    "g": 234,
    "b": 249
  },
  "hsl": {
    "h": 186.122,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.86931,
    "c": 0.11669,
    "h": 205.5
  },
  "luminance": 0.6851
}

Semantic roles & 50–950 ramp

primary

#66EAF9

secondary

#D34130

accent

#1700E6

background

#FDFFFF

surface

#F7FEFF

border

#D0D6D7

text

#101617

muted

#818585

Preview Lab

Preview with #66EAF9

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

Preview Lab → · Contrast checker → · Palette generator →