#5B66ED#5B66ED

#5B66ED is a mid, highly saturated blue. Relative luminance 0.178; OKLCH L 57.7% C 0.201 H 274.7°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#5B66ED
RGB	rgb(91, 102, 237)
HSL	hsl(235, 80%, 64%)
HSV	hsv(235, 62%, 93%)
CMYK	cmyk(61.6%, 57%, 0%, 7.1%)
CIE-LAB	lab(49.30, 36.08, -69.57)
CIE-LCH	lch(49.30, 78.37, 297.41°)
OKLab	oklab(57.72% 0.0164 -0.2)
OKLCH	oklch(57.72% 0.201 274.7)
XYZ	xyz(24.3468, 17.8393, 82.2647)
Luminance	0.1784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B66ED #EDE25B

analogous

#5BAFED #5B66ED #995BED

triadic

#5B66ED #ED5B66 #66ED5B

tetradic

#5B66ED #ED5BAF #EDE25B #5BED99

square

#5B66ED #ED5BAF #EDE25B #5BED99

split-complementary

#5B66ED #ED995B #AFED5B

monochromatic

#1421B9 #2433E7 #5B66ED #9299F3 #C9CDF9

Accessibility & contrast

On white

4.60

#5B66ED on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#5B66ED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5B66ED

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B66ED	#FFFFFF	#000000	##FFFFFF
##5B66ED	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007CF2

Deuteranopia (green-blind)

#006FEA

Tritanopia (blue-blind)

#0087A0

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5b66ed;
/* rgb */ color: rgb(91, 102, 237);
/* oklch */ color: oklch(57.7% 0.201 274.7);

Tailwind

colors: {
  custom: {
    50: '#9791f4',
    500: '#5b66ed',
    950: '#000000',
  },
}

SCSS

$custom: #5b66ed;
$custom-light: #9791f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5b66ed",
  "rgb": {
    "r": 91,
    "g": 102,
    "b": 237
  },
  "hsl": {
    "h": 235.479,
    "s": 80.22,
    "l": 64.314
  },
  "oklch": {
    "l": 0.57722,
    "c": 0.20067,
    "h": 274.7
  },
  "luminance": 0.17841
}

Semantic roles & 50–950 ramp

primary

#5B66ED

secondary

#EBE7B9

accent

#CD09DD

background

#FAF8FF

surface

#F3F0FE

border

#CDCBD6

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #5B66ED

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

Preview Lab → · Contrast checker → · Palette generator →