#5B5DCF#5B5DCF

#5B5DCF is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.9% C 0.172 H 278.2°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#5B5DCF
RGB	rgb(91, 93, 207)
HSL	hsl(239, 55%, 58%)
HSV	hsv(239, 56%, 81%)
CMYK	cmyk(56%, 55.1%, 0%, 18.8%)
CIE-LAB	lab(45.02, 31.81, -59.49)
CIE-LCH	lch(45.02, 67.46, 298.14°)
OKLab	oklab(53.87% 0.0245 -0.1704)
OKLCH	oklch(53.87% 0.172 278.2)
XYZ	xyz(19.4876, 14.5565, 60.8022)
Luminance	0.1456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5DCF #CFCD5B

analogous

#5B97CF #5B5DCF #935BCF

triadic

#5B5DCF #CF5B5D #5DCF5B

tetradic

#5B5DCF #CF5B97 #CFCD5B #5BCF93

square

#5B5DCF #CF5B97 #CFCD5B #5BCF93

split-complementary

#5B5DCF #CF935B #97CF5B

monochromatic

#282988 #3638B7 #5B5DCF #8A8CDD #BABBEB

Accessibility & contrast

On white

5.37

#5B5DCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#5B5DCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5DCF

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5DCF	#FFFFFF	#000000	##FFFFFF
##5B5DCF	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B6FD3

Deuteranopia (green-blind)

#0066CD

Tritanopia (blue-blind)

#1C778D

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #5b5dcf;
/* rgb */ color: rgb(91, 93, 207);
/* oklch */ color: oklch(53.9% 0.172 278.2);

Tailwind

colors: {
  custom: {
    50: '#938bde',
    500: '#5b5dcf',
    950: '#000000',
  },
}

SCSS

$custom: #5b5dcf;
$custom-light: #938bde;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5dcf",
  "rgb": {
    "r": 91,
    "g": 93,
    "b": 207
  },
  "hsl": {
    "h": 238.966,
    "s": 54.717,
    "l": 58.431
  },
  "oklch": {
    "l": 0.53872,
    "c": 0.17216,
    "h": 278.2
  },
  "luminance": 0.14558
}

Semantic roles & 50–950 ramp

primary

#5B5DCF

secondary

#DAD9AC

accent

#DC4ADE

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #5B5DCF

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

Preview Lab → · Contrast checker → · Palette generator →