#5B40E8#5B40E8

#5B40E8 is a mid, highly saturated blue. Relative luminance 0.117; OKLCH L 51.4% C 0.237 H 281.4°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#5B40E8
RGB	rgb(91, 64, 232)
HSL	hsl(250, 79%, 58%)
HSV	hsv(250, 72%, 91%)
CMYK	cmyk(60.8%, 72.4%, 0%, 9%)
CIE-LAB	lab(40.76, 56.21, -80.71)
CIE-LCH	lch(40.76, 98.35, 304.86°)
OKLab	oklab(51.39% 0.0468 -0.2327)
OKLCH	oklch(51.39% 0.237 281.4)
XYZ	xyz(20.7087, 11.7156, 77.4984)
Luminance	0.1172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B40E8 #CDE840

analogous

#4079E8 #5B40E8 #AF40E8

triadic

#5B40E8 #E85B40 #40E85B

tetradic

#5B40E8 #E84079 #CDE840 #40E8AF

square

#5B40E8 #E84079 #CDE840 #40E8AF

split-complementary

#5B40E8 #E8AF40 #79E840

monochromatic

#29139B #3719D2 #5B40E8 #8A77EF #B9ADF5

Accessibility & contrast

On white

6.28

#5B40E8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#5B40E8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B40E8

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B40E8	#FFFFFF	#000000	##FFFFFF
##5B40E8	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066ED

Deuteranopia (green-blind)

#005AE5

Tritanopia (blue-blind)

#006F91

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #5b40e8;
/* rgb */ color: rgb(91, 64, 232);
/* oklch */ color: oklch(51.4% 0.237 281.4);

Tailwind

colors: {
  custom: {
    50: '#9978f1',
    500: '#5b40e8',
    950: '#000000',
  },
}

SCSS

$custom: #5b40e8;
$custom-light: #9978f1;
$custom-dark: #000000;

JSON

{
  "hex": "#5b40e8",
  "rgb": {
    "r": 91,
    "g": 64,
    "b": 232
  },
  "hsl": {
    "h": 249.643,
    "s": 78.505,
    "l": 58.039
  },
  "oklch": {
    "l": 0.5139,
    "c": 0.23741,
    "h": 281.4
  },
  "luminance": 0.11717
}

Semantic roles & 50–950 ramp

primary

#5B40E8

secondary

#D9E3A0

accent

#F533D6

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#0F0917

muted

#7F7B85

Preview Lab

Preview with #5B40E8

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

Preview Lab → · Contrast checker → · Palette generator →