#4B73DC#4B73DC

#4B73DC is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.1% C 0.166 H 265.8°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#4B73DC
RGB	rgb(75, 115, 220)
HSL	hsl(223, 67%, 58%)
HSV	hsv(223, 66%, 86%)
CMYK	cmyk(65.9%, 47.7%, 0%, 13.7%)
CIE-LAB	lab(50.60, 19.69, -57.95)
CIE-LCH	lch(50.60, 61.20, 288.77°)
OKLab	oklab(58.11% -0.0123 -0.166)
OKLCH	oklch(58.11% 0.166 265.8)
XYZ	xyz(21.9462, 18.9225, 70.1921)
Luminance	0.1893 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B73DC #DCB44B

analogous

#4BBCDC #4B73DC #6B4BDC

triadic

#4B73DC #DC4B73 #73DC4B

tetradic

#4B73DC #DC4BBC #DCB44B #4BDC6B

square

#4B73DC #DC4BBC #DCB44B #4BDC6B

split-complementary

#4B73DC #DC6B4B #BCDC4B

monochromatic

#1C3C91 #2652C4 #4B73DC #7E9BE6 #B1C3F0

Accessibility & contrast

On white

4.39

#4B73DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#4B73DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B73DC

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B73DC	#FFFFFF	#000000	##000000
##4B73DC	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7FE0

Deuteranopia (green-blind)

#1A72DA

Tritanopia (blue-blind)

#008B9D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4b73dc;
/* rgb */ color: rgb(75, 115, 220);
/* oklch */ color: oklch(58.1% 0.166 265.8);

Tailwind

colors: {
  custom: {
    50: '#8c9ae7',
    500: '#4b73dc',
    950: '#000000',
  },
}

SCSS

$custom: #4b73dc;
$custom-light: #8c9ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#4b73dc",
  "rgb": {
    "r": 75,
    "g": 115,
    "b": 220
  },
  "hsl": {
    "h": 223.448,
    "s": 67.442,
    "l": 57.843
  },
  "oklch": {
    "l": 0.58105,
    "c": 0.16646,
    "h": 265.8
  },
  "luminance": 0.18925
}

Semantic roles & 50–950 ramp

primary

#4B73DC

secondary

#DECEA4

accent

#BB3DEA

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4B73DC

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

Preview Lab → · Contrast checker → · Palette generator →