#4E73B4#4E73B4

#4E73B4 is a mid, moderate blue. Relative luminance 0.172; OKLCH L 55.8% C 0.110 H 261.0°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4E73B4
RGB	rgb(78, 115, 180)
HSL	hsl(218, 40%, 51%)
HSV	hsv(218, 57%, 71%)
CMYK	cmyk(56.7%, 36.1%, 0%, 29.4%)
CIE-LAB	lab(48.48, 6.56, -38.42)
CIE-LCH	lch(48.48, 38.98, 279.69°)
OKLab	oklab(55.78% -0.0171 -0.1087)
OKLCH	oklch(55.78% 0.11 261)
XYZ	xyz(17.5080, 17.1751, 45.5637)
Luminance	0.1718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73B4 #B48F4E

analogous

#4EA6B4 #4E73B4 #5C4EB4

triadic

#4E73B4 #B44E73 #73B44E

tetradic

#4E73B4 #B44EA6 #B48F4E #4EB45C

square

#4E73B4 #B44EA6 #B48F4E #4EB45C

split-complementary

#4E73B4 #B45C4E #A6B44E

monochromatic

#283C5F #3B578A #4E73B4 #7995C6 #A4B7D8

Accessibility & contrast

On white

4.73

#4E73B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#4E73B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73B4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73B4	#FFFFFF	#000000	##FFFFFF
##4E73B4	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5878B7

Deuteranopia (green-blind)

#4C6FB3

Tritanopia (blue-blind)

#03818B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4e73b4;
/* rgb */ color: rgb(78, 115, 180);
/* oklch */ color: oklch(55.8% 0.110 261.0);

Tailwind

colors: {
  custom: {
    50: '#879bcb',
    500: '#4e73b4',
    950: '#000000',
  },
}

SCSS

$custom: #4e73b4;
$custom-light: #879bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73b4",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 180
  },
  "hsl": {
    "h": 218.235,
    "s": 40.476,
    "l": 50.588
  },
  "oklch": {
    "l": 0.55781,
    "c": 0.11001,
    "h": 261
  },
  "luminance": 0.17176
}

Semantic roles & 50–950 ramp

primary

#4E73B4

secondary

#C6B598

accent

#A457D0

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4E73B4

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

Preview Lab → · Contrast checker → · Palette generator →