#5B6BCB#5B6BCB

#5B6BCB is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.3% C 0.148 H 273.6°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#5B6BCB
RGB	rgb(91, 107, 203)
HSL	hsl(231, 52%, 58%)
HSV	hsv(231, 55%, 80%)
CMYK	cmyk(55.2%, 47.3%, 0%, 20.4%)
CIE-LAB	lab(48.32, 21.86, -51.88)
CIE-LCH	lch(48.32, 56.30, 292.85°)
OKLab	oklab(56.28% 0.0093 -0.1479)
OKLCH	oklch(56.28% 0.148 273.6)
XYZ	xyz(20.3481, 17.0499, 58.7070)
Luminance	0.1705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B6BCB #CBBB5B

analogous

#5BA3CB #5B6BCB #835BCB

triadic

#5B6BCB #CB5B6B #6BCB5B

tetradic

#5B6BCB #CB5BA3 #CBBB5B #5BCB83

square

#5B6BCB #CB5BA3 #CBBB5B #5BCB83

split-complementary

#5B6BCB #CB835B #A3CB5B

monochromatic

#293682 #3849B1 #5B6BCB #8995DA #B8BFE8

Accessibility & contrast

On white

4.76

#5B6BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#5B6BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B6BCB

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B6BCB	#FFFFFF	#000000	##FFFFFF
##5B6BCB	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E78CF

Deuteranopia (green-blind)

#2F6EC9

Tritanopia (blue-blind)

#1E8091

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5b6bcb;
/* rgb */ color: rgb(91, 107, 203);
/* oklch */ color: oklch(56.3% 0.148 273.6);

Tailwind

colors: {
  custom: {
    50: '#9295db',
    500: '#5b6bcb',
    950: '#000000',
  },
}

SCSS

$custom: #5b6bcb;
$custom-light: #9295db;
$custom-dark: #000000;

JSON

{
  "hex": "#5b6bcb",
  "rgb": {
    "r": 91,
    "g": 107,
    "b": 203
  },
  "hsl": {
    "h": 231.429,
    "s": 51.852,
    "l": 57.647
  },
  "oklch": {
    "l": 0.56276,
    "c": 0.1482,
    "h": 273.6
  },
  "luminance": 0.17051
}

Semantic roles & 50–950 ramp

primary

#5B6BCB

secondary

#D7D1AA

accent

#C74CDB

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #5B6BCB

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

Preview Lab → · Contrast checker → · Palette generator →