#66A4F2#66A4F2

#66A4F2 is a light, vivid cyan. Relative luminance 0.358; OKLCH L 71.0% C 0.132 H 254.9°. Best body text is #000000 at 8.16:1 contrast (WCAG AA passes).

Color values

HEX	#66A4F2
RGB	rgb(102, 164, 242)
HSL	hsl(213, 84%, 67%)
HSV	hsv(213, 58%, 95%)
CMYK	cmyk(57.9%, 32.2%, 0%, 5.1%)
CIE-LAB	lab(66.35, 2.64, -45.05)
CIE-LCH	lch(66.35, 45.13, 273.36°)
OKLab	oklab(71.02% -0.0343 -0.1272)
OKLCH	oklch(71.02% 0.132 254.9)
XYZ	xyz(34.7763, 35.7835, 89.0614)
Luminance	0.3579 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A4F2 #F2B466

analogous

#66EAF2 #66A4F2 #6E66F2

triadic

#66A4F2 #F266A4 #A4F266

tetradic

#66A4F2 #F266EA #F2B466 #66F26E

square

#66A4F2 #F266EA #F2B466 #66F26E

split-complementary

#66A4F2 #F26E66 #EAF266

monochromatic

#1164CC #2E82ED #66A4F2 #9EC6F7 #D7E7FC

Accessibility & contrast

On white

2.57

#66A4F2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.16

#66A4F2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A4F2

8.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A4F2	#FFFFFF	#000000	##000000
##66A4F2	1.00	2.57	8.16	8.16
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.16	21.00	1.00	1.00
##000000	8.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#84A9F5

Deuteranopia (green-blind)

#719BF0

Tritanopia (blue-blind)

#00B6C0

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #66a4f2;
/* rgb */ color: rgb(102, 164, 242);
/* oklch */ color: oklch(71.0% 0.132 254.9);

Tailwind

colors: {
  custom: {
    50: '#9cbef6',
    500: '#66a4f2',
    950: '#000000',
  },
}

SCSS

$custom: #66a4f2;
$custom-light: #9cbef6;
$custom-dark: #000000;

JSON

{
  "hex": "#66a4f2",
  "rgb": {
    "r": 102,
    "g": 164,
    "b": 242
  },
  "hsl": {
    "h": 213.429,
    "s": 84.337,
    "l": 67.451
  },
  "oklch": {
    "l": 0.71016,
    "c": 0.13175,
    "h": 254.9
  },
  "luminance": 0.35787
}

Semantic roles & 50–950 ramp

primary

#66A4F2

secondary

#F0DCC4

accent

#7F05E1

background

#FAFBFF

surface

#F4F6FE

border

#CED0D6

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #66A4F2

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

Preview Lab → · Contrast checker → · Palette generator →