#5B6BBD#5B6BBD

#5B6BBD is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.4% C 0.128 H 273.2°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#5B6BBD
RGB	rgb(91, 107, 189)
HSL	hsl(230, 43%, 55%)
HSV	hsv(230, 52%, 74%)
CMYK	cmyk(51.9%, 43.4%, 0%, 25.9%)
CIE-LAB	lab(47.51, 17.33, -45.12)
CIE-LCH	lch(47.51, 48.34, 291.02°)
OKLab	oklab(55.39% 0.0072 -0.1281)
OKLCH	oklch(55.39% 0.128 273.2)
XYZ	xyz(18.7544, 16.4124, 50.3139)
Luminance	0.1641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B6BBD #BDAD5B

analogous

#5B9CBD #5B6BBD #7C5BBD

triadic

#5B6BBD #BD5B6B #6BBD5B

tetradic

#5B6BBD #BD5B9C #BDAD5B #5BBD7C

square

#5B6BBD #BD5B9C #BDAD5B #5BBD7C

split-complementary

#5B6BBD #BD7C5B #9CBD5B

monochromatic

#2D3870 #3F4E9C #5B6BBD #8792CF #B2BAE0

Accessibility & contrast

On white

4.90

#5B6BBD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#5B6BBD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B6BBD

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B6BBD	#FFFFFF	#000000	##FFFFFF
##5B6BBD	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4975C0

Deuteranopia (green-blind)

#3F6DBB

Tritanopia (blue-blind)

#307D8B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5b6bbd;
/* rgb */ color: rgb(91, 107, 189);
/* oklch */ color: oklch(55.4% 0.128 273.2);

Tailwind

colors: {
  custom: {
    50: '#9095d1',
    500: '#5b6bbd',
    950: '#000000',
  },
}

SCSS

$custom: #5b6bbd;
$custom-light: #9095d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5b6bbd",
  "rgb": {
    "r": 91,
    "g": 107,
    "b": 189
  },
  "hsl": {
    "h": 230.204,
    "s": 42.609,
    "l": 54.902
  },
  "oklch": {
    "l": 0.55394,
    "c": 0.12828,
    "h": 273.2
  },
  "luminance": 0.16414
}

Semantic roles & 50–950 ramp

primary

#5B6BBD

secondary

#CFC8A5

accent

#BE55D2

background

#F9F9FC

surface

#F1F1F9

border

#CBCBD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #5B6BBD

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

Preview Lab → · Contrast checker → · Palette generator →