#4B73BA#4B73BA

#4B73BA is a mid, moderate blue. Relative luminance 0.173; OKLCH L 56.0% C 0.120 H 261.1°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#4B73BA
RGB	rgb(75, 115, 186)
HSL	hsl(218, 45%, 51%)
HSV	hsv(218, 60%, 73%)
CMYK	cmyk(59.7%, 38.2%, 0%, 27.1%)
CIE-LAB	lab(48.64, 7.95, -41.66)
CIE-LCH	lch(48.64, 42.41, 280.80°)
OKLab	oklab(55.96% -0.0184 -0.1182)
OKLCH	oklch(55.96% 0.12 261.1)
XYZ	xyz(17.8922, 17.3010, 48.8414)
Luminance	0.1730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B73BA #BA924B

analogous

#4BAABA #4B73BA #5A4BBA

triadic

#4B73BA #BA4B73 #73BA4B

tetradic

#4B73BA #BA4BAA #BA924B #4BBA5A

square

#4B73BA #BA4BAA #BA924B #4BBA5A

split-complementary

#4B73BA #BA5A4B #AABA4B

monochromatic

#263D64 #375790 #4B73BA #7795CB #A3B8DC

Accessibility & contrast

On white

4.71

#4B73BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#4B73BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B73BA

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B73BA	#FFFFFF	#000000	##FFFFFF
##4B73BA	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5579BD

Deuteranopia (green-blind)

#466FB9

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4b73ba;
/* rgb */ color: rgb(75, 115, 186);
/* oklch */ color: oklch(56.0% 0.120 261.1);

Tailwind

colors: {
  custom: {
    50: '#869acf',
    500: '#4b73ba',
    950: '#000000',
  },
}

SCSS

$custom: #4b73ba;
$custom-light: #869acf;
$custom-dark: #000000;

JSON

{
  "hex": "#4b73ba",
  "rgb": {
    "r": 75,
    "g": 115,
    "b": 186
  },
  "hsl": {
    "h": 218.378,
    "s": 44.578,
    "l": 51.176
  },
  "oklch": {
    "l": 0.55963,
    "c": 0.1196,
    "h": 261.1
  },
  "luminance": 0.17302
}

Semantic roles & 50–950 ramp

primary

#4B73BA

secondary

#C9B798

accent

#A654D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4B73BA

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

Preview Lab → · Contrast checker → · Palette generator →