#4B59BB#4B59BB

#4B59BB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.6% C 0.154 H 273.5°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#4B59BB
RGB	rgb(75, 89, 187)
HSL	hsl(233, 45%, 51%)
HSV	hsv(233, 60%, 73%)
CMYK	cmyk(59.9%, 52.4%, 0%, 26.7%)
CIE-LAB	lab(41.58, 24.65, -53.53)
CIE-LCH	lch(41.58, 58.93, 294.73°)
OKLab	oklab(50.58% 0.0094 -0.1533)
OKLCH	oklch(50.58% 0.154 273.5)
XYZ	xyz(15.4407, 12.2273, 48.5505)
Luminance	0.1223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B59BB #BBAD4B

analogous

#4B91BB #4B59BB #754BBB

triadic

#4B59BB #BB4B59 #59BB4B

tetradic

#4B59BB #BB4B91 #BBAD4B #4BBB75

square

#4B59BB #BB4B91 #BBAD4B #4BBB75

split-complementary

#4B59BB #BB754B #91BB4B

monochromatic

#262E65 #374292 #4B59BB #7782CC #A4ABDD

Accessibility & contrast

On white

6.09

#4B59BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#4B59BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B59BB

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B59BB	#FFFFFF	#000000	##FFFFFF
##4B59BB	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F67BE

Deuteranopia (green-blind)

#005DB9

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4b59bb;
/* rgb */ color: rgb(75, 89, 187);
/* oklch */ color: oklch(50.6% 0.154 273.5);

Tailwind

colors: {
  custom: {
    50: '#8787d0',
    500: '#4b59bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b59bb;
$custom-light: #8787d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b59bb",
  "rgb": {
    "r": 75,
    "g": 89,
    "b": 187
  },
  "hsl": {
    "h": 232.5,
    "s": 45.161,
    "l": 51.373
  },
  "oklch": {
    "l": 0.50581,
    "c": 0.15362,
    "h": 273.5
  },
  "luminance": 0.12228
}

Semantic roles & 50–950 ramp

primary

#4B59BB

secondary

#CAC398

accent

#C553D5

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4B59BB

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

Preview Lab → · Contrast checker → · Palette generator →