#4E73B5#4E73B5

#4E73B5 is a mid, moderate blue. Relative luminance 0.172; OKLCH L 55.8% C 0.111 H 261.3°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4E73B5
RGB	rgb(78, 115, 181)
HSL	hsl(218, 41%, 51%)
HSV	hsv(218, 57%, 71%)
CMYK	cmyk(56.9%, 36.5%, 0%, 29%)
CIE-LAB	lab(48.53, 6.89, -38.92)
CIE-LCH	lch(48.53, 39.53, 280.04°)
OKLab	oklab(55.84% -0.0169 -0.1101)
OKLCH	oklch(55.84% 0.111 261.3)
XYZ	xyz(17.6102, 17.2159, 46.1021)
Luminance	0.1722 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73B5 #B5904E

analogous

#4EA6B5 #4E73B5 #5C4EB5

triadic

#4E73B5 #B54E73 #73B54E

tetradic

#4E73B5 #B54EA6 #B5904E #4EB55C

square

#4E73B5 #B54EA6 #B5904E #4EB55C

split-complementary

#4E73B5 #B55C4E #A6B54E

monochromatic

#283C60 #3A578B #4E73B5 #7995C7 #A4B7D9

Accessibility & contrast

On white

4.73

#4E73B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#4E73B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73B5

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73B5	#FFFFFF	#000000	##FFFFFF
##4E73B5	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)

#5878B8

Deuteranopia (green-blind)

#4B6FB4

Tritanopia (blue-blind)

#00828B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4e73b5;
/* rgb */ color: rgb(78, 115, 181);
/* oklch */ color: oklch(55.8% 0.111 261.3);

Tailwind

colors: {
  custom: {
    50: '#879acb',
    500: '#4e73b5',
    950: '#000000',
  },
}

SCSS

$custom: #4e73b5;
$custom-light: #879acb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73b5",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 181
  },
  "hsl": {
    "h": 218.447,
    "s": 41.036,
    "l": 50.784
  },
  "oklch": {
    "l": 0.55838,
    "c": 0.11142,
    "h": 261.3
  },
  "luminance": 0.17217
}

Semantic roles & 50–950 ramp

primary

#4E73B5

secondary

#C6B699

accent

#A557D1

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4E73B5

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

Preview Lab → · Contrast checker → · Palette generator →