#66A0F3#66A0F3

#66A0F3 is a light, vivid blue. Relative luminance 0.344; OKLCH L 70.2% C 0.137 H 257.4°. Best body text is #000000 at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#66A0F3
RGB	rgb(102, 160, 243)
HSL	hsl(215, 85%, 68%)
HSV	hsv(215, 58%, 95%)
CMYK	cmyk(58%, 34.2%, 0%, 4.7%)
CIE-LAB	lab(65.31, 5.25, -47.25)
CIE-LCH	lch(65.31, 47.54, 276.34°)
OKLab	oklab(70.21% -0.0298 -0.1336)
OKLCH	oklch(70.21% 0.137 257.4)
XYZ	xyz(34.2223, 34.4345, 89.6197)
Luminance	0.3444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A0F3 #F3B966

analogous

#66E7F3 #66A0F3 #7266F3

triadic

#66A0F3 #F366A0 #A0F366

tetradic

#66A0F3 #F366E7 #F3B966 #66F372

square

#66A0F3 #F366E7 #F3B966 #66F372

split-complementary

#66A0F3 #F37266 #E7F366

monochromatic

#105ECE #2D7DEF #66A0F3 #9FC3F7 #D7E6FC

Accessibility & contrast

On white

2.66

#66A0F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.89

#66A0F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A0F3

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A0F3	#FFFFFF	#000000	##000000
##66A0F3	1.00	2.66	7.89	7.89
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.89	21.00	1.00	1.00
##000000	7.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7DA6F6

Deuteranopia (green-blind)

#6B98F1

Tritanopia (blue-blind)

#00B3BE

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #66a0f3;
/* rgb */ color: rgb(102, 160, 243);
/* oklch */ color: oklch(70.2% 0.137 257.4);

Tailwind

colors: {
  custom: {
    50: '#9cbbf7',
    500: '#66a0f3',
    950: '#000000',
  },
}

SCSS

$custom: #66a0f3;
$custom-light: #9cbbf7;
$custom-dark: #000000;

JSON

{
  "hex": "#66a0f3",
  "rgb": {
    "r": 102,
    "g": 160,
    "b": 243
  },
  "hsl": {
    "h": 215.319,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.70213,
    "c": 0.13692,
    "h": 257.4
  },
  "luminance": 0.34437
}

Semantic roles & 50–950 ramp

primary

#66A0F3

secondary

#F0DEC5

accent

#8604E2

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #66A0F3

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

Preview Lab → · Contrast checker → · Palette generator →