#66ABE5#66ABE5

#66ABE5 is a light, moderate cyan. Relative luminance 0.376; OKLCH L 71.9% C 0.110 H 245.5°. Best body text is #000000 at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#66ABE5
RGB	rgb(102, 171, 229)
HSL	hsl(207, 71%, 65%)
HSV	hsv(207, 55%, 90%)
CMYK	cmyk(55.5%, 25.3%, 0%, 10.2%)
CIE-LAB	lab(67.73, -5.34, -35.79)
CIE-LCH	lch(67.73, 36.18, 261.52°)
OKLab	oklab(71.91% -0.0457 -0.1003)
OKLCH	oklch(71.91% 0.11 245.5)
XYZ	xyz(34.1801, 37.6048, 79.5708)
Luminance	0.3761 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ABE5 #E5A066

analogous

#66E5E0 #66ABE5 #666BE5

triadic

#66ABE5 #E566AB #ABE566

tetradic

#66ABE5 #E066E5 #E5A066 #6BE566

square

#66ABE5 #E066E5 #E5A066 #6BE566

split-complementary

#66ABE5 #E5666B #E5E066

monochromatic

#1E6FB2 #328EDC #66ABE5 #9AC8EE #CFE4F7

Accessibility & contrast

On white

2.46

#66ABE5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.52

#66ABE5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ABE5

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ABE5	#FFFFFF	#000000	##000000
##66ABE5	1.00	2.46	8.52	8.52
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.52	21.00	1.00	1.00
##000000	8.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92ACE8

Deuteranopia (green-blind)

#819FE4

Tritanopia (blue-blind)

#00B9BF

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #66abe5;
/* rgb */ color: rgb(102, 171, 229);
/* oklch */ color: oklch(71.9% 0.110 245.5);

Tailwind

colors: {
  custom: {
    50: '#9ac3ed',
    500: '#66abe5',
    950: '#000000',
  },
}

SCSS

$custom: #66abe5;
$custom-light: #9ac3ed;
$custom-dark: #000000;

JSON

{
  "hex": "#66abe5",
  "rgb": {
    "r": 102,
    "g": 171,
    "b": 229
  },
  "hsl": {
    "h": 207.402,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.71908,
    "c": 0.11023,
    "h": 245.5
  },
  "luminance": 0.37608
}

Semantic roles & 50–950 ramp

primary

#66ABE5

secondary

#E9D2BE

accent

#6A13D3

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1216

muted

#7F8184

Preview Lab

Preview with #66ABE5

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

Preview Lab → · Contrast checker → · Palette generator →