#66ABE9#66ABE9

#66ABE9 is a light, moderate cyan. Relative luminance 0.378; OKLCH L 72.1% C 0.115 H 247.2°. Best body text is #000000 at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#66ABE9
RGB	rgb(102, 171, 233)
HSL	hsl(208, 75%, 66%)
HSV	hsv(208, 56%, 91%)
CMYK	cmyk(56.2%, 26.6%, 0%, 8.6%)
CIE-LAB	lab(67.90, -4.11, -37.72)
CIE-LCH	lch(67.90, 37.94, 263.78°)
OKLab	oklab(72.1% -0.0444 -0.1059)
OKLCH	oklch(72.1% 0.115 247.2)
XYZ	xyz(34.7451, 37.8308, 82.5461)
Luminance	0.3783 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ABE9 #E9A466

analogous

#66E9E5 #66ABE9 #6669E9

triadic

#66ABE9 #E966AB #ABE966

tetradic

#66ABE9 #E566E9 #E9A466 #69E966

square

#66ABE9 #E566E9 #E9A466 #69E966

split-complementary

#66ABE9 #E96669 #E9E566

monochromatic

#1B6FBA #308EE1 #66ABE9 #9CC8F1 #D1E6F8

Accessibility & contrast

On white

2.45

#66ABE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.57

#66ABE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ABE9

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ABE9	#FFFFFF	#000000	##000000
##66ABE9	1.00	2.45	8.57	8.57
#FFFFFF	2.45	1.00	21.00	21.00
#000000	8.57	21.00	1.00	1.00
##000000	8.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91ADEC

Deuteranopia (green-blind)

#7FA0E8

Tritanopia (blue-blind)

#00BAC0

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66abe9;
/* rgb */ color: rgb(102, 171, 233);
/* oklch */ color: oklch(72.1% 0.115 247.2);

Tailwind

colors: {
  custom: {
    50: '#9bc3f0',
    500: '#66abe9',
    950: '#000000',
  },
}

SCSS

$custom: #66abe9;
$custom-light: #9bc3f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66abe9",
  "rgb": {
    "r": 102,
    "g": 171,
    "b": 233
  },
  "hsl": {
    "h": 208.397,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.72095,
    "c": 0.11484,
    "h": 247.2
  },
  "luminance": 0.37834
}

Semantic roles & 50–950 ramp

primary

#66ABE9

secondary

#EBD4C0

accent

#6D0ED7

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66ABE9

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

Preview Lab → · Contrast checker → · Palette generator →