#5B6FDD#5B6FDD

#5B6FDD is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.3% C 0.168 H 272.4°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#5B6FDD
RGB	rgb(91, 111, 221)
HSL	hsl(231, 66%, 61%)
HSV	hsv(231, 59%, 87%)
CMYK	cmyk(58.8%, 49.8%, 0%, 13.3%)
CIE-LAB	lab(50.47, 25.29, -58.68)
CIE-LCH	lch(50.47, 63.90, 293.32°)
OKLab	oklab(58.26% 0.0071 -0.1679)
OKLCH	oklch(58.26% 0.168 272.4)
XYZ	xyz(23.0457, 18.8117, 70.8092)
Luminance	0.1881 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B6FDD #DDC95B

analogous

#5BB0DD #5B6FDD #885BDD

triadic

#5B6FDD #DD5B6F #6FDD5B

tetradic

#5B6FDD #DD5BB0 #DDC95B #5BDD88

square

#5B6FDD #DD5BB0 #DDC95B #5BDD88

split-complementary

#5B6FDD #DD885B #B0DD5B

monochromatic

#21349D #2B44D0 #5B6FDD #8E9CE8 #C0C8F2

Accessibility & contrast

On white

4.41

#5B6FDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#5B6FDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B6FDD

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B6FDD	#FFFFFF	#000000	##000000
##5B6FDD	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#357EE1

Deuteranopia (green-blind)

#1A73DB

Tritanopia (blue-blind)

#00889C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5b6fdd;
/* rgb */ color: rgb(91, 111, 221);
/* oklch */ color: oklch(58.3% 0.168 272.4);

Tailwind

colors: {
  custom: {
    50: '#9498e8',
    500: '#5b6fdd',
    950: '#000000',
  },
}

SCSS

$custom: #5b6fdd;
$custom-light: #9498e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b6fdd",
  "rgb": {
    "r": 91,
    "g": 111,
    "b": 221
  },
  "hsl": {
    "h": 230.769,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.58255,
    "c": 0.16801,
    "h": 272.4
  },
  "luminance": 0.18813
}

Semantic roles & 50–950 ramp

primary

#5B6FDD

secondary

#E2DBB1

accent

#B218CE

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5B6FDD

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

Preview Lab → · Contrast checker → · Palette generator →