#5A66EF#5A66EF

#5A66EF is a mid, highly saturated blue. Relative luminance 0.179; OKLCH L 57.8% C 0.204 H 274.3°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#5A66EF
RGB	rgb(90, 102, 239)
HSL	hsl(235, 82%, 65%)
HSV	hsv(235, 62%, 94%)
CMYK	cmyk(62.3%, 57.3%, 0%, 6.3%)
CIE-LAB	lab(49.38, 36.57, -70.56)
CIE-LCH	lch(49.38, 79.48, 297.40°)
OKLab	oklab(57.81% 0.0153 -0.2029)
OKLCH	oklch(57.81% 0.204 274.3)
XYZ	xyz(24.5427, 17.9063, 83.8075)
Luminance	0.1791 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A66EF #EFE35A

analogous

#5AB0EF #5A66EF #995AEF

triadic

#5A66EF #EF5A66 #66EF5A

tetradic

#5A66EF #EF5AB0 #EFE35A #5AEF99

square

#5A66EF #EF5AB0 #EFE35A #5AEF99

split-complementary

#5A66EF #EF995A #B0EF5A

monochromatic

#1220BC #2232EA #5A66EF #929AF4 #CACDFA

Accessibility & contrast

On white

4.58

#5A66EF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#5A66EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5A66EF

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A66EF	#FFFFFF	#000000	##000000
##5A66EF	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007CF4

Deuteranopia (green-blind)

#006FEC

Tritanopia (blue-blind)

#0087A1

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5a66ef;
/* rgb */ color: rgb(90, 102, 239);
/* oklch */ color: oklch(57.8% 0.204 274.3);

Tailwind

colors: {
  custom: {
    50: '#9791f5',
    500: '#5a66ef',
    950: '#000000',
  },
}

SCSS

$custom: #5a66ef;
$custom-light: #9791f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5a66ef",
  "rgb": {
    "r": 90,
    "g": 102,
    "b": 239
  },
  "hsl": {
    "h": 235.168,
    "s": 82.32,
    "l": 64.51
  },
  "oklch": {
    "l": 0.57811,
    "c": 0.20351,
    "h": 274.3
  },
  "luminance": 0.17908
}

Semantic roles & 50–950 ramp

primary

#5A66EF

secondary

#ECE8B9

accent

#CD07DF

background

#FAF8FF

surface

#F3F0FF

border

#CDCBD7

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #5A66EF

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

Preview Lab → · Contrast checker → · Palette generator →