#4B73BC#4B73BC

#4B73BC is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.1% C 0.122 H 261.5°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4B73BC
RGB	rgb(75, 115, 188)
HSL	hsl(219, 46%, 52%)
HSV	hsv(219, 60%, 74%)
CMYK	cmyk(60.1%, 38.8%, 0%, 26.3%)
CIE-LAB	lab(48.74, 8.63, -42.64)
CIE-LCH	lch(48.74, 43.51, 281.44°)
OKLab	oklab(56.08% -0.018 -0.1211)
OKLCH	oklch(56.08% 0.122 261.5)
XYZ	xyz(18.1063, 17.3866, 49.9690)
Luminance	0.1739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B73BC #BC944B

analogous

#4BACBC #4B73BC #5C4BBC

triadic

#4B73BC #BC4B73 #73BC4B

tetradic

#4B73BC #BC4BAC #BC944B #4BBC5C

square

#4B73BC #BC4BAC #BC944B #4BBC5C

split-complementary

#4B73BC #BC5C4B #ACBC4B

monochromatic

#263D66 #375793 #4B73BC #7896CD #A4B8DD

Accessibility & contrast

On white

4.69

#4B73BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#4B73BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B73BC

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B73BC	#FFFFFF	#000000	##FFFFFF
##4B73BC	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5479BF

Deuteranopia (green-blind)

#456FBA

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4b73bc;
/* rgb */ color: rgb(75, 115, 188);
/* oklch */ color: oklch(56.1% 0.122 261.5);

Tailwind

colors: {
  custom: {
    50: '#879ad0',
    500: '#4b73bc',
    950: '#000000',
  },
}

SCSS

$custom: #4b73bc;
$custom-light: #879ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b73bc",
  "rgb": {
    "r": 75,
    "g": 115,
    "b": 188
  },
  "hsl": {
    "h": 218.761,
    "s": 45.749,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56081,
    "c": 0.12239,
    "h": 261.5
  },
  "luminance": 0.17388
}

Semantic roles & 50–950 ramp

primary

#4B73BC

secondary

#CAB999

accent

#A752D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4B73BC

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

Preview Lab → · Contrast checker → · Palette generator →