#5B71EF#5B71EF

#5B71EF is a mid, vivid blue. Relative luminance 0.203; OKLCH L 59.9% C 0.190 H 272.0°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#5B71EF
RGB	rgb(91, 113, 239)
HSL	hsl(231, 82%, 65%)
HSV	hsv(231, 62%, 94%)
CMYK	cmyk(61.9%, 52.7%, 0%, 6.3%)
CIE-LAB	lab(52.13, 30.03, -66.10)
CIE-LCH	lch(52.13, 72.60, 294.44°)
OKLab	oklab(59.88% 0.0066 -0.1897)
OKLCH	oklch(59.88% 0.19 272)
XYZ	xyz(25.7943, 20.2642, 84.1967)
Luminance	0.2027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B71EF #EFD95B

analogous

#5BBBEF #5B71EF #8F5BEF

triadic

#5B71EF #EF5B71 #71EF5B

tetradic

#5B71EF #EF5BBB #EFD95B #5BEF8F

square

#5B71EF #EF5BBB #EFD95B #5BEF8F

split-complementary

#5B71EF #EF8F5B #BBEF5B

monochromatic

#122CBD #2341EA #5B71EF #93A1F4 #CBD2FA

Accessibility & contrast

On white

4.16

#5B71EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#5B71EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B71EF

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B71EF	#FFFFFF	#000000	##000000
##5B71EF	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E83F3

Deuteranopia (green-blind)

#0076EC

Tritanopia (blue-blind)

#008FA5

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #5b71ef;
/* rgb */ color: rgb(91, 113, 239);
/* oklch */ color: oklch(59.9% 0.190 272.0);

Tailwind

colors: {
  custom: {
    50: '#9799f5',
    500: '#5b71ef',
    950: '#000000',
  },
}

SCSS

$custom: #5b71ef;
$custom-light: #9799f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b71ef",
  "rgb": {
    "r": 91,
    "g": 113,
    "b": 239
  },
  "hsl": {
    "h": 231.081,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.59884,
    "c": 0.18978,
    "h": 272
  },
  "luminance": 0.20266
}

Semantic roles & 50–950 ramp

primary

#5B71EF

secondary

#ECE5BA

accent

#BF07DF

background

#FAF9FF

surface

#F3F2FE

border

#CDCCD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #5B71EF

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

Preview Lab → · Contrast checker → · Palette generator →