#4B73AB#4B73AB

#4B73AB is a mid, moderate blue. Relative luminance 0.167; OKLCH L 55.1% C 0.099 H 257.0°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4B73AB
RGB	rgb(75, 115, 171)
HSL	hsl(215, 39%, 48%)
HSV	hsv(215, 56%, 67%)
CMYK	cmyk(56.1%, 32.7%, 0%, 32.9%)
CIE-LAB	lab(47.88, 2.92, -34.15)
CIE-LCH	lch(47.88, 34.28, 274.90°)
OKLab	oklab(55.12% -0.0223 -0.0963)
OKLCH	oklch(55.12% 0.099 257)
XYZ	xyz(16.3805, 16.6963, 40.8797)
Luminance	0.1670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B73AB #AB834B

analogous

#4BA3AB #4B73AB #534BAB

triadic

#4B73AB #AB4B73 #73AB4B

tetradic

#4B73AB #AB4BA3 #AB834B #4BAB53

square

#4B73AB #AB4BA3 #AB834B #4BAB53

split-complementary

#4B73AB #AB534B #A3AB4B

monochromatic

#263A56 #385680 #4B73AB #7293C1 #9DB4D4

Accessibility & contrast

On white

4.84

#4B73AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#4B73AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B73AB

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B73AB	#FFFFFF	#000000	##FFFFFF
##4B73AB	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C77AD

Deuteranopia (green-blind)

#506DAA

Tritanopia (blue-blind)

#088087

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4b73ab;
/* rgb */ color: rgb(75, 115, 171);
/* oklch */ color: oklch(55.1% 0.099 257.0);

Tailwind

colors: {
  custom: {
    50: '#849bc4',
    500: '#4b73ab',
    950: '#000000',
  },
}

SCSS

$custom: #4b73ab;
$custom-light: #849bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#4b73ab",
  "rgb": {
    "r": 75,
    "g": 115,
    "b": 171
  },
  "hsl": {
    "h": 215,
    "s": 39.024,
    "l": 48.235
  },
  "oklch": {
    "l": 0.55121,
    "c": 0.09884,
    "h": 257
  },
  "luminance": 0.16698
}

Semantic roles & 50–950 ramp

primary

#4B73AB

secondary

#C0AD91

accent

#9E59CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #4B73AB

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

Preview Lab → · Contrast checker → · Palette generator →