#4E73B3#4E73B3

#4E73B3 is a mid, moderate blue. Relative luminance 0.171; OKLCH L 55.7% C 0.109 H 260.8°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#4E73B3
RGB	rgb(78, 115, 179)
HSL	hsl(218, 40%, 50%)
HSV	hsv(218, 56%, 70%)
CMYK	cmyk(56.4%, 35.8%, 0%, 29.8%)
CIE-LAB	lab(48.43, 6.23, -37.92)
CIE-LCH	lch(48.43, 38.43, 279.33°)
OKLab	oklab(55.73% -0.0174 -0.1072)
OKLCH	oklch(55.73% 0.109 260.8)
XYZ	xyz(17.4065, 17.1345, 45.0291)
Luminance	0.1714 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73B3 #B38E4E

analogous

#4EA5B3 #4E73B3 #5B4EB3

triadic

#4E73B3 #B34E73 #73B34E

tetradic

#4E73B3 #B34EA5 #B38E4E #4EB35B

square

#4E73B3 #B34EA5 #B38E4E #4EB35B

split-complementary

#4E73B3 #B35B4E #A5B34E

monochromatic

#283C5E #3B5789 #4E73B3 #7995C5 #A4B7D8

Accessibility & contrast

On white

4.74

#4E73B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#4E73B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73B3

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73B3	#FFFFFF	#000000	##FFFFFF
##4E73B3	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5978B6

Deuteranopia (green-blind)

#4C6FB2

Tritanopia (blue-blind)

#06818A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4e73b3;
/* rgb */ color: rgb(78, 115, 179);
/* oklch */ color: oklch(55.7% 0.109 260.8);

Tailwind

colors: {
  custom: {
    50: '#879bca',
    500: '#4e73b3',
    950: '#000000',
  },
}

SCSS

$custom: #4e73b3;
$custom-light: #879bca;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73b3",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 179
  },
  "hsl": {
    "h": 218.02,
    "s": 39.921,
    "l": 50.392
  },
  "oklch": {
    "l": 0.55725,
    "c": 0.10862,
    "h": 260.8
  },
  "luminance": 0.17136
}

Semantic roles & 50–950 ramp

primary

#4E73B3

secondary

#C5B498

accent

#A458D0

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4E73B3

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

Preview Lab → · Contrast checker → · Palette generator →