#66A3F2#66A3F2

#66A3F2 is a light, vivid cyan. Relative luminance 0.354; OKLCH L 70.8% C 0.133 H 255.5°. Best body text is #000000 at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#66A3F2
RGB	rgb(102, 163, 242)
HSL	hsl(214, 84%, 67%)
HSV	hsv(214, 58%, 95%)
CMYK	cmyk(57.9%, 32.6%, 0%, 5.1%)
CIE-LAB	lab(66.08, 3.21, -45.48)
CIE-LCH	lch(66.08, 45.60, 274.04°)
OKLab	oklab(70.8% -0.0333 -0.1285)
OKLCH	oklch(70.8% 0.133 255.5)
XYZ	xyz(34.5980, 35.4270, 89.0020)
Luminance	0.3543 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A3F2 #F2B566

analogous

#66E9F2 #66A3F2 #6F66F2

triadic

#66A3F2 #F266A3 #A3F266

tetradic

#66A3F2 #F266E9 #F2B566 #66F26F

square

#66A3F2 #F266E9 #F2B566 #66F26F

split-complementary

#66A3F2 #F26F66 #E9F266

monochromatic

#1163CC #2E81ED #66A3F2 #9EC5F7 #D7E7FC

Accessibility & contrast

On white

2.60

#66A3F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.09

#66A3F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A3F2

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A3F2	#FFFFFF	#000000	##000000
##66A3F2	1.00	2.60	8.09	8.09
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.09	21.00	1.00	1.00
##000000	8.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#82A8F5

Deuteranopia (green-blind)

#709BF0

Tritanopia (blue-blind)

#00B5BF

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #66a3f2;
/* rgb */ color: rgb(102, 163, 242);
/* oklch */ color: oklch(70.8% 0.133 255.5);

Tailwind

colors: {
  custom: {
    50: '#9cbdf6',
    500: '#66a3f2',
    950: '#000000',
  },
}

SCSS

$custom: #66a3f2;
$custom-light: #9cbdf6;
$custom-dark: #000000;

JSON

{
  "hex": "#66a3f2",
  "rgb": {
    "r": 102,
    "g": 163,
    "b": 242
  },
  "hsl": {
    "h": 213.857,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.70801,
    "c": 0.1327,
    "h": 255.5
  },
  "luminance": 0.3543
}

Semantic roles & 50–950 ramp

primary

#66A3F2

secondary

#F0DDC4

accent

#8105E1

background

#FAFBFF

surface

#F4F6FE

border

#CED0D6

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66A3F2

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

Preview Lab → · Contrast checker → · Palette generator →