#5B5DDD#5B5DDD

#5B5DDD is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.9% C 0.191 H 277.4°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#5B5DDD
RGB	rgb(91, 93, 221)
HSL	hsl(239, 66%, 61%)
HSV	hsv(239, 59%, 87%)
CMYK	cmyk(58.8%, 57.9%, 0%, 13.3%)
CIE-LAB	lab(46.00, 36.33, -65.89)
CIE-LCH	lch(46.00, 75.24, 298.87°)
OKLab	oklab(54.91% 0.0246 -0.1892)
OKLCH	oklch(54.91% 0.191 277.4)
XYZ	xyz(21.2757, 15.2717, 70.2192)
Luminance	0.1527 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5DDD #DDDB5B

analogous

#5B9EDD #5B5DDD #9A5BDD

triadic

#5B5DDD #DD5B5D #5DDD5B

tetradic

#5B5DDD #DD5B9E #DDDB5B #5BDD9A

square

#5B5DDD #DD5B9E #DDDB5B #5BDD9A

split-complementary

#5B5DDD #DD9A5B #9EDD5B

monochromatic

#21229D #2B2ED0 #5B5DDD #8E8FE8 #C0C1F2

Accessibility & contrast

On white

5.18

#5B5DDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#5B5DDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5DDD

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5DDD	#FFFFFF	#000000	##FFFFFF
##5B5DDD	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072E1

Deuteranopia (green-blind)

#0068DA

Tritanopia (blue-blind)

#007C94

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #5b5ddd;
/* rgb */ color: rgb(91, 93, 221);
/* oklch */ color: oklch(54.9% 0.191 277.4);

Tailwind

colors: {
  custom: {
    50: '#958be8',
    500: '#5b5ddd',
    950: '#000000',
  },
}

SCSS

$custom: #5b5ddd;
$custom-light: #958be8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5ddd",
  "rgb": {
    "r": 91,
    "g": 93,
    "b": 221
  },
  "hsl": {
    "h": 239.077,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.54914,
    "c": 0.19084,
    "h": 277.4
  },
  "luminance": 0.15273
}

Semantic roles & 50–950 ramp

primary

#5B5DDD

secondary

#E2E2B1

accent

#CB18CE

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5B5DDD

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

Preview Lab → · Contrast checker → · Palette generator →