#4E73B8#4E73B8

#4E73B8 is a mid, moderate blue. Relative luminance 0.173; OKLCH L 56.0% C 0.116 H 262.0°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#4E73B8
RGB	rgb(78, 115, 184)
HSL	hsl(219, 43%, 51%)
HSV	hsv(219, 58%, 72%)
CMYK	cmyk(57.6%, 37.5%, 0%, 27.8%)
CIE-LAB	lab(48.69, 7.89, -40.41)
CIE-LCH	lch(48.69, 41.18, 281.05°)
OKLab	oklab(56.01% -0.0162 -0.1145)
OKLCH	oklch(56.01% 0.116 262)
XYZ	xyz(17.9214, 17.3404, 47.7407)
Luminance	0.1734 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73B8 #B8934E

analogous

#4EA8B8 #4E73B8 #5E4EB8

triadic

#4E73B8 #B84E73 #73B84E

tetradic

#4E73B8 #B84EA8 #B8934E #4EB85E

square

#4E73B8 #B84EA8 #B8934E #4EB85E

split-complementary

#4E73B8 #B85E4E #A8B84E

monochromatic

#283D64 #39578F #4E73B8 #7A96CA #A5B8DB

Accessibility & contrast

On white

4.70

#4E73B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#4E73B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73B8

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73B8	#FFFFFF	#000000	##FFFFFF
##4E73B8	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5679BB

Deuteranopia (green-blind)

#496FB7

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4e73b8;
/* rgb */ color: rgb(78, 115, 184);
/* oklch */ color: oklch(56.0% 0.116 262.0);

Tailwind

colors: {
  custom: {
    50: '#889acd',
    500: '#4e73b8',
    950: '#000000',
  },
}

SCSS

$custom: #4e73b8;
$custom-light: #889acd;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73b8",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 184
  },
  "hsl": {
    "h": 219.057,
    "s": 42.742,
    "l": 51.373
  },
  "oklch": {
    "l": 0.56009,
    "c": 0.11562,
    "h": 262
  },
  "luminance": 0.17342
}

Semantic roles & 50–950 ramp

primary

#4E73B8

secondary

#C8B89A

accent

#A755D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E13

muted

#7D7E82

Preview Lab

Preview with #4E73B8

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

Preview Lab → · Contrast checker → · Palette generator →