#5B6CBB#5B6CBB

#5B6CBB is a mid, vivid blue. Relative luminance 0.165; OKLCH L 55.5% C 0.124 H 272.6°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#5B6CBB
RGB	rgb(91, 108, 187)
HSL	hsl(229, 41%, 55%)
HSV	hsv(229, 51%, 73%)
CMYK	cmyk(51.3%, 42.2%, 0%, 26.7%)
CIE-LAB	lab(47.67, 16.08, -43.71)
CIE-LCH	lch(47.67, 46.57, 290.19°)
OKLab	oklab(55.48% 0.0056 -0.1239)
OKLCH	oklch(55.48% 0.124 272.6)
XYZ	xyz(18.6437, 16.5359, 49.2134)
Luminance	0.1654 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B6CBB #BBAA5B

analogous

#5B9CBB #5B6CBB #7A5BBB

triadic

#5B6CBB #BB5B6C #6CBB5B

tetradic

#5B6CBB #BB5B9C #BBAA5B #5BBB7A

square

#5B6CBB #BB5B9C #BBAA5B #5BBB7A

split-complementary

#5B6CBB #BB7A5B #9CBB5B

monochromatic

#2E396E #404F99 #5B6CBB #8693CD #B2BADF

Accessibility & contrast

On white

4.88

#5B6CBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#5B6CBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B6CBB

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B6CBB	#FFFFFF	#000000	##FFFFFF
##5B6CBB	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C75BE

Deuteranopia (green-blind)

#426DB9

Tritanopia (blue-blind)

#317D8A

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5b6cbb;
/* rgb */ color: rgb(91, 108, 187);
/* oklch */ color: oklch(55.5% 0.124 272.6);

Tailwind

colors: {
  custom: {
    50: '#8f95d0',
    500: '#5b6cbb',
    950: '#000000',
  },
}

SCSS

$custom: #5b6cbb;
$custom-light: #8f95d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b6cbb",
  "rgb": {
    "r": 91,
    "g": 108,
    "b": 187
  },
  "hsl": {
    "h": 229.375,
    "s": 41.379,
    "l": 54.51
  },
  "oklch": {
    "l": 0.5548,
    "c": 0.12407,
    "h": 272.6
  },
  "luminance": 0.16537
}

Semantic roles & 50–950 ramp

primary

#5B6CBB

secondary

#CDC6A5

accent

#BB57D1

background

#F9F9FC

surface

#F1F1F9

border

#CBCBD2

text

#0D0D14

muted

#7E7E82

Preview Lab

Preview with #5B6CBB

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

Preview Lab → · Contrast checker → · Palette generator →