#5B71E7#5B71E7

#5B71E7 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.3% C 0.179 H 271.9°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#5B71E7
RGB	rgb(91, 113, 231)
HSL	hsl(231, 74%, 63%)
HSV	hsv(231, 61%, 91%)
CMYK	cmyk(60.6%, 51.1%, 0%, 9.4%)
CIE-LAB	lab(51.61, 27.37, -62.46)
CIE-LCH	lch(51.61, 68.20, 293.66°)
OKLab	oklab(59.33% 0.006 -0.179)
OKLCH	oklch(59.33% 0.179 271.9)
XYZ	xyz(24.6385, 19.8019, 78.1096)
Luminance	0.1980 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B71E7 #E7D15B

analogous

#5BB7E7 #5B71E7 #8B5BE7

triadic

#5B71E7 #E75B71 #71E75B

tetradic

#5B71E7 #E75BB7 #E7D15B #5BE78B

square

#5B71E7 #E75BB7 #E7D15B #5BE78B

split-complementary

#5B71E7 #E78B5B #B7E75B

monochromatic

#1931AE #2643DF #5B71E7 #909FEF #C6CDF7

Accessibility & contrast

On white

4.23

#5B71E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#5B71E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B71E7

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B71E7	#FFFFFF	#000000	##000000
##5B71E7	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D81EB

Deuteranopia (green-blind)

#0075E5

Tritanopia (blue-blind)

#008CA1

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #5b71e7;
/* rgb */ color: rgb(91, 113, 231);
/* oklch */ color: oklch(59.3% 0.179 271.9);

Tailwind

colors: {
  custom: {
    50: '#9699ef',
    500: '#5b71e7',
    950: '#000000',
  },
}

SCSS

$custom: #5b71e7;
$custom-light: #9699ef;
$custom-dark: #000000;

JSON

{
  "hex": "#5b71e7",
  "rgb": {
    "r": 91,
    "g": 113,
    "b": 231
  },
  "hsl": {
    "h": 230.571,
    "s": 74.468,
    "l": 63.137
  },
  "oklch": {
    "l": 0.59325,
    "c": 0.17907,
    "h": 271.9
  },
  "luminance": 0.19804
}

Semantic roles & 50–950 ramp

primary

#5B71E7

secondary

#E8E0B6

accent

#B70FD7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D17

muted

#7E7E85

Preview Lab

Preview with #5B71E7

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

Preview Lab → · Contrast checker → · Palette generator →