#5B40E3#5B40E3

#5B40E3 is a mid, highly saturated blue. Relative luminance 0.114; OKLCH L 50.9% C 0.232 H 281.9°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#5B40E3
RGB	rgb(91, 64, 227)
HSL	hsl(250, 74%, 57%)
HSV	hsv(250, 72%, 89%)
CMYK	cmyk(59.9%, 71.8%, 0%, 11%)
CIE-LAB	lab(40.30, 54.75, -78.61)
CIE-LCH	lch(40.30, 95.80, 304.85°)
OKLab	oklab(50.93% 0.0478 -0.2266)
OKLCH	oklch(50.93% 0.232 281.9)
XYZ	xyz(20.0086, 11.4356, 73.8111)
Luminance	0.1144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B40E3 #C8E340

analogous

#4076E3 #5B40E3 #AD40E3

triadic

#5B40E3 #E35B40 #40E35B

tetradic

#5B40E3 #E34076 #C8E340 #40E3AD

square

#5B40E3 #E34076 #C8E340 #40E3AD

split-complementary

#5B40E3 #E3AD40 #76E340

monochromatic

#2A1693 #3A1DC8 #5B40E3 #8975EB #B7ABF3

Accessibility & contrast

On white

6.39

#5B40E3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#5B40E3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B40E3

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B40E3	#FFFFFF	#000000	##FFFFFF
##5B40E3	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064E8

Deuteranopia (green-blind)

#0059E0

Tritanopia (blue-blind)

#006D8E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #5b40e3;
/* rgb */ color: rgb(91, 64, 227);
/* oklch */ color: oklch(50.9% 0.232 281.9);

Tailwind

colors: {
  custom: {
    50: '#9878ed',
    500: '#5b40e3',
    950: '#000000',
  },
}

SCSS

$custom: #5b40e3;
$custom-light: #9878ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5b40e3",
  "rgb": {
    "r": 91,
    "g": 64,
    "b": 227
  },
  "hsl": {
    "h": 249.939,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.50929,
    "c": 0.23163,
    "h": 281.9
  },
  "luminance": 0.11437
}

Semantic roles & 50–950 ramp

primary

#5B40E3

secondary

#D6E19E

accent

#F137D2

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#0F0916

muted

#7F7B84

Preview Lab

Preview with #5B40E3

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

Preview Lab → · Contrast checker → · Palette generator →