#5B58CB#5B58CB

#5B58CB is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.7% C 0.173 H 279.8°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#5B58CB
RGB	rgb(91, 88, 203)
HSL	hsl(242, 53%, 57%)
HSV	hsv(242, 57%, 80%)
CMYK	cmyk(55.2%, 56.7%, 0%, 20.4%)
CIE-LAB	lab(43.53, 33.60, -59.60)
CIE-LCH	lch(43.53, 68.42, 299.41°)
OKLab	oklab(52.68% 0.0295 -0.1708)
OKLCH	oklch(52.68% 0.173 279.8)
XYZ	xyz(18.5802, 13.5142, 58.1178)
Luminance	0.1351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B58CB #C8CB58

analogous

#588FCB #5B58CB #9458CB

triadic

#5B58CB #CB5B58 #58CB5B

tetradic

#5B58CB #CB588F #C8CB58 #58CB94

square

#5B58CB #CB588F #C8CB58 #58CB94

split-complementary

#5B58CB #CB9458 #8FCB58

monochromatic

#2A2881 #3A37AF #5B58CB #8987DA #B7B5E8

Accessibility & contrast

On white

5.67

#5B58CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#5B58CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B58CB

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B58CB	#FFFFFF	#000000	##FFFFFF
##5B58CB	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#0062C9

Tritanopia (blue-blind)

#237389

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #5b58cb;
/* rgb */ color: rgb(91, 88, 203);
/* oklch */ color: oklch(52.7% 0.173 279.8);

Tailwind

colors: {
  custom: {
    50: '#9387dc',
    500: '#5b58cb',
    950: '#000000',
  },
}

SCSS

$custom: #5b58cb;
$custom-light: #9387dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5b58cb",
  "rgb": {
    "r": 91,
    "g": 88,
    "b": 203
  },
  "hsl": {
    "h": 241.565,
    "s": 52.511,
    "l": 57.059
  },
  "oklch": {
    "l": 0.52675,
    "c": 0.17332,
    "h": 279.8
  },
  "luminance": 0.13515
}

Semantic roles & 50–950 ramp

primary

#5B58CB

secondary

#D6D7A8

accent

#DC4CD8

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5B58CB

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

Preview Lab → · Contrast checker → · Palette generator →