#4E73B9#4E73B9

#4E73B9 is a mid, moderate blue. Relative luminance 0.174; OKLCH L 56.1% C 0.117 H 262.2°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4E73B9
RGB	rgb(78, 115, 185)
HSL	hsl(219, 43%, 52%)
HSV	hsv(219, 58%, 73%)
CMYK	cmyk(57.8%, 37.8%, 0%, 27.5%)
CIE-LAB	lab(48.74, 8.23, -40.91)
CIE-LCH	lch(48.74, 41.73, 281.37°)
OKLab	oklab(56.07% -0.0159 -0.1159)
OKLCH	oklch(56.07% 0.117 262.2)
XYZ	xyz(18.0266, 17.3825, 48.2947)
Luminance	0.1738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73B9 #B9944E

analogous

#4EA9B9 #4E73B9 #5F4EB9

triadic

#4E73B9 #B94E73 #73B94E

tetradic

#4E73B9 #B94EA9 #B9944E #4EB95F

square

#4E73B9 #B94EA9 #B9944E #4EB95F

split-complementary

#4E73B9 #B95F4E #A9B94E

monochromatic

#283D65 #395791 #4E73B9 #7A96CA #A6B8DC

Accessibility & contrast

On white

4.69

#4E73B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#4E73B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73B9

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73B9	#FFFFFF	#000000	##FFFFFF
##4E73B9	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5679BC

Deuteranopia (green-blind)

#486FB8

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4e73b9;
/* rgb */ color: rgb(78, 115, 185);
/* oklch */ color: oklch(56.1% 0.117 262.2);

Tailwind

colors: {
  custom: {
    50: '#889ace',
    500: '#4e73b9',
    950: '#000000',
  },
}

SCSS

$custom: #4e73b9;
$custom-light: #889ace;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73b9",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 185
  },
  "hsl": {
    "h": 219.252,
    "s": 43.32,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56066,
    "c": 0.11702,
    "h": 262.2
  },
  "luminance": 0.17384
}

Semantic roles & 50–950 ramp

primary

#4E73B9

secondary

#C9B99A

accent

#A755D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4E73B9

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

Preview Lab → · Contrast checker → · Palette generator →