#66A0FD#66A0FD

#66A0FD is a light, vivid blue. Relative luminance 0.351; OKLCH L 70.7% C 0.150 H 259.5°. Best body text is #000000 at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#66A0FD
RGB	rgb(102, 160, 253)
HSL	hsl(217, 97%, 70%)
HSV	hsv(217, 60%, 99%)
CMYK	cmyk(59.7%, 36.8%, 0%, 0.8%)
CIE-LAB	lab(65.79, 8.45, -51.94)
CIE-LCH	lch(65.79, 52.63, 279.24°)
OKLab	oklab(70.75% -0.0274 -0.1473)
OKLCH	oklch(70.75% 0.15 259.5)
XYZ	xyz(35.7737, 35.0551, 97.7905)
Luminance	0.3506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A0FD #FDC366

analogous

#66EBFD #66A0FD #7866FD

triadic

#66A0FD #FD66A0 #A0FD66

tetradic

#66A0FD #FD66EB #FDC366 #66FD78

square

#66A0FD #FD66EB #FDC366 #66FD78

split-complementary

#66A0FD #FD7866 #EBFD66

monochromatic

#035AE6 #2A7AFC #66A0FD #A2C6FE #DFEBFF

Accessibility & contrast

On white

2.62

#66A0FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.01

#66A0FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A0FD

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A0FD	#FFFFFF	#000000	##000000
##66A0FD	1.00	2.62	8.01	8.01
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.01	21.00	1.00	1.00
##000000	8.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78A8FF

Deuteranopia (green-blind)

#6499FB

Tritanopia (blue-blind)

#00B5C2

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #66a0fd;
/* rgb */ color: rgb(102, 160, 253);
/* oklch */ color: oklch(70.7% 0.150 259.5);

Tailwind

colors: {
  custom: {
    50: '#9dbbfe',
    500: '#66a0fd',
    950: '#000000',
  },
}

SCSS

$custom: #66a0fd;
$custom-light: #9dbbfe;
$custom-dark: #000000;

JSON

{
  "hex": "#66a0fd",
  "rgb": {
    "r": 102,
    "g": 160,
    "b": 253
  },
  "hsl": {
    "h": 216.954,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.70749,
    "c": 0.14987,
    "h": 259.5
  },
  "luminance": 0.35058
}

Semantic roles & 50–950 ramp

primary

#66A0FD

secondary

#F5E4CA

accent

#8D00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #66A0FD

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

Preview Lab → · Contrast checker → · Palette generator →