#4E73B0#4E73B0

#4E73B0 is a mid, moderate blue. Relative luminance 0.170; OKLCH L 55.6% C 0.104 H 260.0°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#4E73B0
RGB	rgb(78, 115, 176)
HSL	hsl(217, 39%, 50%)
HSV	hsv(217, 56%, 69%)
CMYK	cmyk(55.7%, 34.7%, 0%, 31%)
CIE-LAB	lab(48.28, 5.24, -36.42)
CIE-LCH	lch(48.28, 36.79, 278.19°)
OKLab	oklab(55.56% -0.0182 -0.1028)
OKLCH	oklch(55.56% 0.104 260)
XYZ	xyz(17.1064, 17.0144, 43.4485)
Luminance	0.1702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73B0 #B08B4E

analogous

#4EA4B0 #4E73B0 #5A4EB0

triadic

#4E73B0 #B04E73 #73B04E

tetradic

#4E73B0 #B04EA4 #B08B4E #4EB05A

square

#4E73B0 #B04EA4 #B08B4E #4EB05A

split-complementary

#4E73B0 #B05A4E #A4B04E

monochromatic

#283C5B #3B5786 #4E73B0 #7894C3 #A2B6D6

Accessibility & contrast

On white

4.77

#4E73B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#4E73B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73B0

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73B0	#FFFFFF	#000000	##FFFFFF
##4E73B0	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A78B3

Deuteranopia (green-blind)

#4E6EAF

Tritanopia (blue-blind)

#0F8089

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4e73b0;
/* rgb */ color: rgb(78, 115, 176);
/* oklch */ color: oklch(55.6% 0.104 260.0);

Tailwind

colors: {
  custom: {
    50: '#879bc8',
    500: '#4e73b0',
    950: '#000000',
  },
}

SCSS

$custom: #4e73b0;
$custom-light: #879bc8;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73b0",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 176
  },
  "hsl": {
    "h": 217.347,
    "s": 38.583,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55558,
    "c": 0.10442,
    "h": 260
  },
  "luminance": 0.17016
}

Semantic roles & 50–950 ramp

primary

#4E73B0

secondary

#C3B297

accent

#A259CF

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4E73B0

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

Preview Lab → · Contrast checker → · Palette generator →