#4B73B0#4B73B0

#4B73B0 is a mid, moderate blue. Relative luminance 0.169; OKLCH L 55.4% C 0.106 H 258.6°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#4B73B0
RGB	rgb(75, 115, 176)
HSL	hsl(216, 40%, 49%)
HSV	hsv(216, 57%, 69%)
CMYK	cmyk(57.4%, 34.7%, 0%, 31%)
CIE-LAB	lab(48.12, 4.58, -36.68)
CIE-LCH	lch(48.12, 36.96, 277.13°)
OKLab	oklab(55.39% -0.0209 -0.1036)
OKLCH	oklch(55.39% 0.106 258.6)
XYZ	xyz(16.8661, 16.8905, 43.4373)
Luminance	0.1689 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B73B0 #B0884B

analogous

#4BA6B0 #4B73B0 #564BB0

triadic

#4B73B0 #B04B73 #73B04B

tetradic

#4B73B0 #B04BA6 #B0884B #4BB056

square

#4B73B0 #B04BA6 #B0884B #4BB056

split-complementary

#4B73B0 #B0564B #A6B04B

monochromatic

#263B5A #395785 #4B73B0 #7494C4 #9FB5D6

Accessibility & contrast

On white

4.80

#4B73B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#4B73B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B73B0

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B73B0	#FFFFFF	#000000	##FFFFFF
##4B73B0	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A77B3

Deuteranopia (green-blind)

#4D6EAF

Tritanopia (blue-blind)

#008189

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4b73b0;
/* rgb */ color: rgb(75, 115, 176);
/* oklch */ color: oklch(55.4% 0.106 258.6);

Tailwind

colors: {
  custom: {
    50: '#859bc8',
    500: '#4b73b0',
    950: '#000000',
  },
}

SCSS

$custom: #4b73b0;
$custom-light: #859bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#4b73b0",
  "rgb": {
    "r": 75,
    "g": 115,
    "b": 176
  },
  "hsl": {
    "h": 216.238,
    "s": 40.239,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55394,
    "c": 0.10572,
    "h": 258.6
  },
  "luminance": 0.16892
}

Semantic roles & 50–950 ramp

primary

#4B73B0

secondary

#C3B094

accent

#A058D0

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4B73B0

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

Preview Lab → · Contrast checker → · Palette generator →