#4B73D9#4B73D9

#4B73D9 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.9% C 0.162 H 265.5°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4B73D9
RGB	rgb(75, 115, 217)
HSL	hsl(223, 65%, 57%)
HSV	hsv(223, 65%, 85%)
CMYK	cmyk(65.4%, 47%, 0%, 14.9%)
CIE-LAB	lab(50.41, 18.64, -56.55)
CIE-LCH	lch(50.41, 59.55, 288.25°)
OKLab	oklab(57.9% -0.0127 -0.1619)
OKLCH	oklch(57.9% 0.162 265.5)
XYZ	xyz(21.5524, 18.7650, 68.1184)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B73D9 #D9B14B

analogous

#4BBAD9 #4B73D9 #6A4BD9

triadic

#4B73D9 #D94B73 #73D94B

tetradic

#4B73D9 #D94BBA #D9B14B #4BD96A

square

#4B73D9 #D94BBA #D9B14B #4BD96A

split-complementary

#4B73D9 #D96A4B #BAD94B

monochromatic

#1E3D8C #2853BF #4B73D9 #7E9AE4 #B0C2EE

Accessibility & contrast

On white

4.42

#4B73D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#4B73D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B73D9

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B73D9	#FFFFFF	#000000	##000000
##4B73D9	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F7FDD

Deuteranopia (green-blind)

#2172D7

Tritanopia (blue-blind)

#008B9B

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4b73d9;
/* rgb */ color: rgb(75, 115, 217);
/* oklch */ color: oklch(57.9% 0.162 265.5);

Tailwind

colors: {
  custom: {
    50: '#8b9ae5',
    500: '#4b73d9',
    950: '#000000',
  },
}

SCSS

$custom: #4b73d9;
$custom-light: #8b9ae5;
$custom-dark: #000000;

JSON

{
  "hex": "#4b73d9",
  "rgb": {
    "r": 75,
    "g": 115,
    "b": 217
  },
  "hsl": {
    "h": 223.099,
    "s": 65.138,
    "l": 57.255
  },
  "oklch": {
    "l": 0.57904,
    "c": 0.16239,
    "h": 265.5
  },
  "luminance": 0.18767
}

Semantic roles & 50–950 ramp

primary

#4B73D9

secondary

#DDCCA3

accent

#B940E8

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4B73D9

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

Preview Lab → · Contrast checker → · Palette generator →