#5B5BB7#5B5BB7

#5B5BB7 is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.8% C 0.142 H 280.3°. Best body text is #FFFFFF at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#5B5BB7
RGB	rgb(91, 91, 183)
HSL	hsl(240, 39%, 54%)
HSV	hsv(240, 50%, 72%)
CMYK	cmyk(50.3%, 50.3%, 0%, 28.2%)
CIE-LAB	lab(42.95, 25.39, -48.92)
CIE-LCH	lch(42.95, 55.12, 297.43°)
OKLab	oklab(51.82% 0.0252 -0.1393)
OKLCH	oklch(51.82% 0.142 280.3)
XYZ	xyz(16.6001, 13.1243, 46.4491)
Luminance	0.1313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5BB7 #B7B75B

analogous

#5B89B7 #5B5BB7 #895BB7

triadic

#5B5BB7 #B75B5B #5BB75B

tetradic

#5B5BB7 #B75B89 #B7B75B #5BB789

square

#5B5BB7 #B75B89 #B7B75B #5BB789

split-complementary

#5B5BB7 #B7895B #89B75B

monochromatic

#2E2E69 #414194 #5B5BB7 #8686CA #B0B0DC

Accessibility & contrast

On white

5.79

#5B5BB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#5B5BB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5BB7

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5BB7	#FFFFFF	#000000	##FFFFFF
##5B5BB7	1.00	5.79	3.63	5.79
#FFFFFF	5.79	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3069BA

Deuteranopia (green-blind)

#2762B5

Tritanopia (blue-blind)

#376F80

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5b5bb7;
/* rgb */ color: rgb(91, 91, 183);
/* oklch */ color: oklch(51.8% 0.142 280.3);

Tailwind

colors: {
  custom: {
    50: '#9089cd',
    500: '#5b5bb7',
    950: '#000000',
  },
}

SCSS

$custom: #5b5bb7;
$custom-light: #9089cd;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5bb7",
  "rgb": {
    "r": 91,
    "g": 91,
    "b": 183
  },
  "hsl": {
    "h": 240,
    "s": 38.983,
    "l": 53.725
  },
  "oklch": {
    "l": 0.5182,
    "c": 0.14161,
    "h": 280.3
  },
  "luminance": 0.13125
}

Semantic roles & 50–950 ramp

primary

#5B5BB7

secondary

#CBCBA3

accent

#CF59CF

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0B13

muted

#7E7C82

Preview Lab

Preview with #5B5BB7

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

Preview Lab → · Contrast checker → · Palette generator →