#4E73BC#4E73BC

#4E73BC is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.2% C 0.121 H 262.8°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4E73BC
RGB	rgb(78, 115, 188)
HSL	hsl(220, 45%, 52%)
HSV	hsv(220, 59%, 74%)
CMYK	cmyk(58.5%, 38.8%, 0%, 26.3%)
CIE-LAB	lab(48.90, 9.23, -42.39)
CIE-LCH	lch(48.90, 43.38, 282.29°)
OKLab	oklab(56.24% -0.0152 -0.1203)
OKLCH	oklch(56.24% 0.121 262.8)
XYZ	xyz(18.3466, 17.5105, 49.9802)
Luminance	0.1751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73BC #BC974E

analogous

#4EAABC #4E73BC #604EBC

triadic

#4E73BC #BC4E73 #73BC4E

tetradic

#4E73BC #BC4EAA #BC974E #4EBC60

square

#4E73BC #BC4EAA #BC974E #4EBC60

split-complementary

#4E73BC #BC604E #AABC4E

monochromatic

#273D68 #385795 #4E73BC #7A96CD #A7B9DE

Accessibility & contrast

On white

4.66

#4E73BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#4E73BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73BC

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73BC	#FFFFFF	#000000	##FFFFFF
##4E73BC	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#547ABF

Deuteranopia (green-blind)

#466FBA

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4e73bc;
/* rgb */ color: rgb(78, 115, 188);
/* oklch */ color: oklch(56.2% 0.121 262.8);

Tailwind

colors: {
  custom: {
    50: '#889ad0',
    500: '#4e73bc',
    950: '#000000',
  },
}

SCSS

$custom: #4e73bc;
$custom-light: #889ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73bc",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 188
  },
  "hsl": {
    "h": 219.818,
    "s": 45.082,
    "l": 52.157
  },
  "oklch": {
    "l": 0.56241,
    "c": 0.12122,
    "h": 262.8
  },
  "luminance": 0.17512
}

Semantic roles & 50–950 ramp

primary

#4E73BC

secondary

#CBBB9B

accent

#A953D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4E73BC

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

Preview Lab → · Contrast checker → · Palette generator →