#5B6FCF#5B6FCF

#5B6FCF is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.3% C 0.149 H 272.1°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#5B6FCF
RGB	rgb(91, 111, 207)
HSL	hsl(230, 55%, 58%)
HSV	hsv(230, 56%, 81%)
CMYK	cmyk(56%, 46.4%, 0%, 18.8%)
CIE-LAB	lab(49.61, 20.69, -52.10)
CIE-LCH	lch(49.61, 56.06, 291.66°)
OKLab	oklab(57.33% 0.0054 -0.1485)
OKLCH	oklch(57.33% 0.149 272.1)
XYZ	xyz(21.2576, 18.0965, 61.3922)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B6FCF #CFBB5B

analogous

#5BA9CF #5B6FCF #815BCF

triadic

#5B6FCF #CF5B6F #6FCF5B

tetradic

#5B6FCF #CF5BA9 #CFBB5B #5BCF81

square

#5B6FCF #CF5BA9 #CFBB5B #5BCF81

split-complementary

#5B6FCF #CF815B #A9CF5B

monochromatic

#283888 #364CB7 #5B6FCF #8A99DD #BAC2EB

Accessibility & contrast

On white

4.55

#5B6FCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#5B6FCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B6FCF

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B6FCF	#FFFFFF	#000000	##000000
##5B6FCF	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#437BD3

Deuteranopia (green-blind)

#3371CD

Tritanopia (blue-blind)

#158495

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5b6fcf;
/* rgb */ color: rgb(91, 111, 207);
/* oklch */ color: oklch(57.3% 0.149 272.1);

Tailwind

colors: {
  custom: {
    50: '#9298de',
    500: '#5b6fcf',
    950: '#000000',
  },
}

SCSS

$custom: #5b6fcf;
$custom-light: #9298de;
$custom-dark: #000000;

JSON

{
  "hex": "#5b6fcf",
  "rgb": {
    "r": 91,
    "g": 111,
    "b": 207
  },
  "hsl": {
    "h": 229.655,
    "s": 54.717,
    "l": 58.431
  },
  "oklch": {
    "l": 0.57333,
    "c": 0.14862,
    "h": 272.1
  },
  "luminance": 0.18098
}

Semantic roles & 50–950 ramp

primary

#5B6FCF

secondary

#DAD2AC

accent

#C44ADE

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #5B6FCF

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

Preview Lab → · Contrast checker → · Palette generator →