#4B73BD#4B73BD

#4B73BD is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.1% C 0.124 H 261.8°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4B73BD
RGB	rgb(75, 115, 189)
HSL	hsl(219, 46%, 52%)
HSV	hsv(219, 60%, 74%)
CMYK	cmyk(60.3%, 39.2%, 0%, 25.9%)
CIE-LAB	lab(48.80, 8.97, -43.13)
CIE-LCH	lch(48.80, 44.06, 281.75°)
OKLab	oklab(56.14% -0.0178 -0.1225)
OKLCH	oklch(56.14% 0.124 261.8)
XYZ	xyz(18.2145, 17.4299, 50.5387)
Luminance	0.1743 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B73BD #BD954B

analogous

#4BACBD #4B73BD #5C4BBD

triadic

#4B73BD #BD4B73 #73BD4B

tetradic

#4B73BD #BD4BAC #BD954B #4BBD5C

square

#4B73BD #BD4BAC #BD954B #4BBD5C

split-complementary

#4B73BD #BD5C4B #ACBD4B

monochromatic

#263D68 #365794 #4B73BD #7896CD #A5B9DE

Accessibility & contrast

On white

4.68

#4B73BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#4B73BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B73BD

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B73BD	#FFFFFF	#000000	##FFFFFF
##4B73BD	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#537AC0

Deuteranopia (green-blind)

#446FBB

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4b73bd;
/* rgb */ color: rgb(75, 115, 189);
/* oklch */ color: oklch(56.1% 0.124 261.8);

Tailwind

colors: {
  custom: {
    50: '#879ad1',
    500: '#4b73bd',
    950: '#000000',
  },
}

SCSS

$custom: #4b73bd;
$custom-light: #879ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#4b73bd",
  "rgb": {
    "r": 75,
    "g": 115,
    "b": 189
  },
  "hsl": {
    "h": 218.947,
    "s": 46.341,
    "l": 51.765
  },
  "oklch": {
    "l": 0.5614,
    "c": 0.12377,
    "h": 261.8
  },
  "luminance": 0.17431
}

Semantic roles & 50–950 ramp

primary

#4B73BD

secondary

#CBB999

accent

#A852D6

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4B73BD

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

Preview Lab → · Contrast checker → · Palette generator →