#5A66CE#5A66CE

#5A66CE is a mid, vivid blue. Relative luminance 0.161; OKLCH L 55.4% C 0.159 H 275.0°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#5A66CE
RGB	rgb(90, 102, 206)
HSL	hsl(234, 54%, 58%)
HSV	hsv(234, 56%, 81%)
CMYK	cmyk(56.3%, 50.5%, 0%, 19.2%)
CIE-LAB	lab(47.15, 25.73, -55.49)
CIE-LCH	lch(47.15, 61.17, 294.88°)
OKLab	oklab(55.43% 0.0139 -0.1586)
OKLCH	oklch(55.43% 0.159 275)
XYZ	xyz(20.1048, 16.1312, 60.4347)
Luminance	0.1613 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A66CE #CEC25A

analogous

#5AA0CE #5A66CE #885ACE

triadic

#5A66CE #CE5A66 #66CE5A

tetradic

#5A66CE #CE5AA0 #CEC25A #5ACE88

square

#5A66CE #CE5AA0 #CEC25A #5ACE88

split-complementary

#5A66CE #CE885A #A0CE5A

monochromatic

#283186 #3643B5 #5A66CE #8992DC #B8BEEA

Accessibility & contrast

On white

4.97

#5A66CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#5A66CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5A66CE

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A66CE	#FFFFFF	#000000	##FFFFFF
##5A66CE	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F75D2

Deuteranopia (green-blind)

#1B6BCC

Tritanopia (blue-blind)

#167D90

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #5a66ce;
/* rgb */ color: rgb(90, 102, 206);
/* oklch */ color: oklch(55.4% 0.159 275.0);

Tailwind

colors: {
  custom: {
    50: '#9291de',
    500: '#5a66ce',
    950: '#000000',
  },
}

SCSS

$custom: #5a66ce;
$custom-light: #9291de;
$custom-dark: #000000;

JSON

{
  "hex": "#5a66ce",
  "rgb": {
    "r": 90,
    "g": 102,
    "b": 206
  },
  "hsl": {
    "h": 233.793,
    "s": 54.206,
    "l": 58.039
  },
  "oklch": {
    "l": 0.55428,
    "c": 0.15921,
    "h": 275
  },
  "luminance": 0.16133
}

Semantic roles & 50–950 ramp

primary

#5A66CE

secondary

#D9D4AB

accent

#CE4ADE

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #5A66CE

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

Preview Lab → · Contrast checker → · Palette generator →