#4B59AB#4B59AB

#4B59AB is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.5% C 0.131 H 273.4°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#4B59AB
RGB	rgb(75, 89, 171)
HSL	hsl(231, 39%, 48%)
HSV	hsv(231, 56%, 67%)
CMYK	cmyk(56.1%, 48%, 0%, 32.9%)
CIE-LAB	lab(40.54, 19.23, -45.79)
CIE-LCH	lch(40.54, 49.66, 292.78°)
OKLab	oklab(49.47% 0.0078 -0.1306)
OKLCH	oklch(49.47% 0.131 273.4)
XYZ	xyz(13.8223, 11.5799, 40.0270)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B59AB #AB9D4B

analogous

#4B89AB #4B59AB #6D4BAB

triadic

#4B59AB #AB4B59 #59AB4B

tetradic

#4B59AB #AB4B89 #AB9D4B #4BAB6D

square

#4B59AB #AB4B89 #AB9D4B #4BAB6D

split-complementary

#4B59AB #AB6D4B #89AB4B

monochromatic

#262D56 #384380 #4B59AB #727EC1 #9DA5D4

Accessibility & contrast

On white

6.33

#4B59AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#4B59AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B59AB

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B59AB	#FFFFFF	#000000	##FFFFFF
##4B59AB	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3264AE

Deuteranopia (green-blind)

#265CA9

Tritanopia (blue-blind)

#166B7A

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4b59ab;
/* rgb */ color: rgb(75, 89, 171);
/* oklch */ color: oklch(49.5% 0.131 273.4);

Tailwind

colors: {
  custom: {
    50: '#8587c4',
    500: '#4b59ab',
    950: '#000000',
  },
}

SCSS

$custom: #4b59ab;
$custom-light: #8587c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4b59ab",
  "rgb": {
    "r": 75,
    "g": 89,
    "b": 171
  },
  "hsl": {
    "h": 231.25,
    "s": 39.024,
    "l": 48.235
  },
  "oklch": {
    "l": 0.49467,
    "c": 0.1308,
    "h": 273.4
  },
  "luminance": 0.11581
}

Semantic roles & 50–950 ramp

primary

#4B59AB

secondary

#C0BA91

accent

#BE59CF

background

#F8F8FC

surface

#F0EFF8

border

#CBCAD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4B59AB

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

Preview Lab → · Contrast checker → · Palette generator →