#5B5CDD#5B5CDD

#5B5CDD is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.7% C 0.192 H 277.6°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#5B5CDD
RGB	rgb(91, 92, 221)
HSL	hsl(240, 66%, 61%)
HSV	hsv(240, 59%, 87%)
CMYK	cmyk(58.8%, 58.4%, 0%, 13.3%)
CIE-LAB	lab(45.77, 36.94, -66.28)
CIE-LCH	lch(45.77, 75.87, 299.13°)
OKLab	oklab(54.74% 0.0255 -0.1904)
OKLCH	oklch(54.74% 0.192 277.6)
XYZ	xyz(21.1885, 15.0973, 70.1901)
Luminance	0.1510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5CDD #DDDC5B

analogous

#5B9DDD #5B5CDD #9B5BDD

triadic

#5B5CDD #DD5B5C #5CDD5B

tetradic

#5B5CDD #DD5B9D #DDDC5B #5BDD9B

square

#5B5CDD #DD5B9D #DDDC5B #5BDD9B

split-complementary

#5B5CDD #DD9B5B #9DDD5B

monochromatic

#21229D #2B2CD0 #5B5CDD #8E8EE8 #C0C1F2

Accessibility & contrast

On white

5.22

#5B5CDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#5B5CDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5CDD

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5CDD	#FFFFFF	#000000	##FFFFFF
##5B5CDD	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072E1

Deuteranopia (green-blind)

#0067DA

Tritanopia (blue-blind)

#007B94

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #5b5cdd;
/* rgb */ color: rgb(91, 92, 221);
/* oklch */ color: oklch(54.7% 0.192 277.6);

Tailwind

colors: {
  custom: {
    50: '#958ae8',
    500: '#5b5cdd',
    950: '#000000',
  },
}

SCSS

$custom: #5b5cdd;
$custom-light: #958ae8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5cdd",
  "rgb": {
    "r": 91,
    "g": 92,
    "b": 221
  },
  "hsl": {
    "h": 239.538,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.54739,
    "c": 0.19209,
    "h": 277.6
  },
  "luminance": 0.15099
}

Semantic roles & 50–950 ramp

primary

#5B5CDD

secondary

#E2E2B1

accent

#CC18CE

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5B5CDD

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

Preview Lab → · Contrast checker → · Palette generator →