#5B5ECB#5B5ECB

#5B5ECB is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.8% C 0.165 H 278.1°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#5B5ECB
RGB	rgb(91, 94, 203)
HSL	hsl(238, 52%, 58%)
HSV	hsv(238, 55%, 80%)
CMYK	cmyk(55.2%, 53.7%, 0%, 20.4%)
CIE-LAB	lab(45.00, 29.91, -57.23)
CIE-LCH	lch(45.00, 64.57, 297.59°)
OKLab	oklab(53.77% 0.0233 -0.1637)
OKLCH	oklch(53.77% 0.165 278.1)
XYZ	xyz(19.0932, 14.5401, 58.2887)
Luminance	0.1454 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B5ECB #CBC85B

analogous

#5B96CB #5B5ECB #905BCB

triadic

#5B5ECB #CB5B5E #5ECB5B

tetradic

#5B5ECB #CB5B96 #CBC85B #5BCB90

square

#5B5ECB #CB5B96 #CBC85B #5BCB90

split-complementary

#5B5ECB #CB905B #96CB5B

monochromatic

#292C82 #383BB1 #5B5ECB #898CDA #B8B9E8

Accessibility & contrast

On white

5.37

#5B5ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#5B5ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B5ECB

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B5ECB	#FFFFFF	#000000	##FFFFFF
##5B5ECB	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C6FCF

Deuteranopia (green-blind)

#0066C9

Tritanopia (blue-blind)

#22778B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #5b5ecb;
/* rgb */ color: rgb(91, 94, 203);
/* oklch */ color: oklch(53.8% 0.165 278.1);

Tailwind

colors: {
  custom: {
    50: '#928bdb',
    500: '#5b5ecb',
    950: '#000000',
  },
}

SCSS

$custom: #5b5ecb;
$custom-light: #928bdb;
$custom-dark: #000000;

JSON

{
  "hex": "#5b5ecb",
  "rgb": {
    "r": 91,
    "g": 94,
    "b": 203
  },
  "hsl": {
    "h": 238.393,
    "s": 51.852,
    "l": 57.647
  },
  "oklch": {
    "l": 0.53769,
    "c": 0.16539,
    "h": 278.1
  },
  "luminance": 0.14541
}

Semantic roles & 50–950 ramp

primary

#5B5ECB

secondary

#D7D6AA

accent

#D74CDB

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #5B5ECB

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

Preview Lab → · Contrast checker → · Palette generator →