#5A66F0#5A66F0

#5A66F0 is a mid, highly saturated blue. Relative luminance 0.180; OKLCH L 57.9% C 0.205 H 274.3°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#5A66F0
RGB	rgb(90, 102, 240)
HSL	hsl(235, 83%, 65%)
HSV	hsv(235, 63%, 94%)
CMYK	cmyk(62.5%, 57.5%, 0%, 5.9%)
CIE-LAB	lab(49.45, 36.90, -71.00)
CIE-LCH	lch(49.45, 80.02, 297.46°)
OKLab	oklab(57.89% 0.0153 -0.2042)
OKLCH	oklch(57.89% 0.205 274.3)
XYZ	xyz(24.6908, 17.9656, 84.5877)
Luminance	0.1797 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A66F0 #F0E45A

analogous

#5AB1F0 #5A66F0 #995AF0

triadic

#5A66F0 #F05A66 #66F05A

tetradic

#5A66F0 #F05AB1 #F0E45A #5AF099

square

#5A66F0 #F05AB1 #F0E45A #5AF099

split-complementary

#5A66F0 #F0995A #B1F05A

monochromatic

#111FBE #2232EB #5A66F0 #929AF5 #CACEFA

Accessibility & contrast

On white

4.57

#5A66F0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#5A66F0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5A66F0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A66F0	#FFFFFF	#000000	##000000
##5A66F0	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007CF5

Deuteranopia (green-blind)

#006FED

Tritanopia (blue-blind)

#0088A1

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5a66f0;
/* rgb */ color: rgb(90, 102, 240);
/* oklch */ color: oklch(57.9% 0.205 274.3);

Tailwind

colors: {
  custom: {
    50: '#9791f6',
    500: '#5a66f0',
    950: '#000000',
  },
}

SCSS

$custom: #5a66f0;
$custom-light: #9791f6;
$custom-dark: #000000;

JSON

{
  "hex": "#5a66f0",
  "rgb": {
    "r": 90,
    "g": 102,
    "b": 240
  },
  "hsl": {
    "h": 235.2,
    "s": 83.333,
    "l": 64.706
  },
  "oklch": {
    "l": 0.57888,
    "c": 0.20482,
    "h": 274.3
  },
  "luminance": 0.17968
}

Semantic roles & 50–950 ramp

primary

#5A66F0

secondary

#EDE9B9

accent

#CE06E0

background

#FAF8FF

surface

#F3F0FF

border

#CDCBD7

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #5A66F0

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

Preview Lab → · Contrast checker → · Palette generator →