#66A1FA#66A1FA

#66A1FA is a light, vivid blue. Relative luminance 0.352; OKLCH L 70.8% C 0.145 H 258.4°. Best body text is #000000 at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#66A1FA
RGB	rgb(102, 161, 250)
HSL	hsl(216, 94%, 69%)
HSV	hsv(216, 59%, 98%)
CMYK	cmyk(59.2%, 35.6%, 0%, 2%)
CIE-LAB	lab(65.91, 6.91, -50.11)
CIE-LCH	lch(65.91, 50.59, 277.85°)
OKLab	oklab(70.8% -0.0292 -0.142)
OKLCH	oklch(70.8% 0.145 258.4)
XYZ	xyz(35.4736, 35.2135, 95.3514)
Luminance	0.3522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A1FA #FABF66

analogous

#66EBFA #66A1FA #7566FA

triadic

#66A1FA #FA66A1 #A1FA66

tetradic

#66A1FA #FA66EB #FABF66 #66FA75

square

#66A1FA #FA66EB #FABF66 #66FA75

split-complementary

#66A1FA #FA7566 #EBFA66

monochromatic

#075DDE #2B7DF8 #66A1FA #A1C5FC #DDEAFE

Accessibility & contrast

On white

2.61

#66A1FA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.04

#66A1FA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A1FA

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A1FA	#FFFFFF	#000000	##000000
##66A1FA	1.00	2.61	8.04	8.04
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.04	21.00	1.00	1.00
##000000	8.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7BA8FE

Deuteranopia (green-blind)

#689AF8

Tritanopia (blue-blind)

#00B5C2

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #66a1fa;
/* rgb */ color: rgb(102, 161, 250);
/* oklch */ color: oklch(70.8% 0.145 258.4);

Tailwind

colors: {
  custom: {
    50: '#9dbcfc',
    500: '#66a1fa',
    950: '#000000',
  },
}

SCSS

$custom: #66a1fa;
$custom-light: #9dbcfc;
$custom-dark: #000000;

JSON

{
  "hex": "#66a1fa",
  "rgb": {
    "r": 102,
    "g": 161,
    "b": 250
  },
  "hsl": {
    "h": 216.081,
    "s": 93.671,
    "l": 69.02
  },
  "oklch": {
    "l": 0.70797,
    "c": 0.14495,
    "h": 258.4
  },
  "luminance": 0.35217
}

Semantic roles & 50–950 ramp

primary

#66A1FA

secondary

#F4E2C8

accent

#8A00E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #66A1FA

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

Preview Lab → · Contrast checker → · Palette generator →