#5B5BDA#5B5BDA

#5B5BDA is a mid, vivid blue. Relative luminance 0.148; OKLCH L 54.3% C 0.189 H 278.0°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#5B5BDA
RGB	rgb(91, 91, 218)
HSL	hsl(240, 63%, 61%)
HSV	hsv(240, 58%, 85%)
CMYK	cmyk(58.3%, 58.3%, 0%, 14.5%)
CIE-LAB	lab(45.31, 36.57, -65.30)
CIE-LCH	lch(45.31, 74.85, 299.25°)
OKLab	oklab(54.34% 0.0265 -0.1875)
OKLCH	oklch(54.34% 0.189 278)
XYZ	xyz(20.7063, 14.7668, 68.0752)
Luminance	0.1477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5BDA #DADA5B

analogous

#5B9ADA #5B5BDA #9A5BDA

triadic

#5B5BDA #DA5B5B #5BDA5B

tetradic

#5B5BDA #DA5B9A #DADA5B #5BDA9A

square

#5B5BDA #DA5B9A #DADA5B #5BDA9A

split-complementary

#5B5BDA #DA9A5B #9ADA5B

monochromatic

#222298 #2E2ECA #5B5BDA #8D8DE5 #BFBFF1

Accessibility & contrast

On white

5.31

#5B5BDA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#5B5BDA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5BDA

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5BDA	#FFFFFF	#000000	##FFFFFF
##5B5BDA	1.00	5.31	3.95	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0071DE

Deuteranopia (green-blind)

#0066D7

Tritanopia (blue-blind)

#007992

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #5b5bda;
/* rgb */ color: rgb(91, 91, 218);
/* oklch */ color: oklch(54.3% 0.189 278.0);

Tailwind

colors: {
  custom: {
    50: '#9589e6',
    500: '#5b5bda',
    950: '#000000',
  },
}

SCSS

$custom: #5b5bda;
$custom-light: #9589e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5bda",
  "rgb": {
    "r": 91,
    "g": 91,
    "b": 218
  },
  "hsl": {
    "h": 240,
    "s": 63.184,
    "l": 60.588
  },
  "oklch": {
    "l": 0.54335,
    "c": 0.1894,
    "h": 278
  },
  "luminance": 0.14768
}

Semantic roles & 50–950 ramp

primary

#5B5BDA

secondary

#E1E1B0

accent

#CB1BCB

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5B5BDA

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

Preview Lab → · Contrast checker → · Palette generator →