#4E73B2#4E73B2

#4E73B2 is a mid, moderate blue. Relative luminance 0.171; OKLCH L 55.7% C 0.107 H 260.5°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#4E73B2
RGB	rgb(78, 115, 178)
HSL	hsl(218, 39%, 50%)
HSV	hsv(218, 56%, 70%)
CMYK	cmyk(56.2%, 35.4%, 0%, 30.2%)
CIE-LAB	lab(48.38, 5.90, -37.42)
CIE-LCH	lch(48.38, 37.88, 278.96°)
OKLab	oklab(55.67% -0.0176 -0.1058)
OKLCH	oklch(55.67% 0.107 260.5)
XYZ	xyz(17.3057, 17.0941, 44.4984)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73B2 #B28D4E

analogous

#4EA5B2 #4E73B2 #5B4EB2

triadic

#4E73B2 #B24E73 #73B24E

tetradic

#4E73B2 #B24EA5 #B28D4E #4EB25B

square

#4E73B2 #B24EA5 #B28D4E #4EB25B

split-complementary

#4E73B2 #B25B4E #A5B24E

monochromatic

#293C5D #3B5788 #4E73B2 #7995C5 #A3B6D7

Accessibility & contrast

On white

4.75

#4E73B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#4E73B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73B2

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73B2	#FFFFFF	#000000	##FFFFFF
##4E73B2	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5978B5

Deuteranopia (green-blind)

#4D6FB1

Tritanopia (blue-blind)

#0A818A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4e73b2;
/* rgb */ color: rgb(78, 115, 178);
/* oklch */ color: oklch(55.7% 0.107 260.5);

Tailwind

colors: {
  custom: {
    50: '#879bc9',
    500: '#4e73b2',
    950: '#000000',
  },
}

SCSS

$custom: #4e73b2;
$custom-light: #879bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73b2",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 178
  },
  "hsl": {
    "h": 217.8,
    "s": 39.37,
    "l": 50.196
  },
  "oklch": {
    "l": 0.55669,
    "c": 0.10722,
    "h": 260.5
  },
  "luminance": 0.17096
}

Semantic roles & 50–950 ramp

primary

#4E73B2

secondary

#C4B498

accent

#A359CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4E73B2

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

Preview Lab → · Contrast checker → · Palette generator →