#4E73BB#4E73BB

#4E73BB is a mid, moderate blue. Relative luminance 0.175; OKLCH L 56.2% C 0.120 H 262.6°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4E73BB
RGB	rgb(78, 115, 187)
HSL	hsl(220, 44%, 52%)
HSV	hsv(220, 58%, 73%)
CMYK	cmyk(58.3%, 38.5%, 0%, 26.7%)
CIE-LAB	lab(48.84, 8.90, -41.90)
CIE-LCH	lch(48.84, 42.83, 281.99°)
OKLab	oklab(56.18% -0.0155 -0.1188)
OKLCH	oklch(56.18% 0.12 262.6)
XYZ	xyz(18.2392, 17.4675, 49.4145)
Luminance	0.1747 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73BB #BB964E

analogous

#4EAABB #4E73BB #604EBB

triadic

#4E73BB #BB4E73 #73BB4E

tetradic

#4E73BB #BB4EAA #BB964E #4EBB60

square

#4E73BB #BB4EAA #BB964E #4EBB60

split-complementary

#4E73BB #BB604E #AABB4E

monochromatic

#283D67 #395793 #4E73BB #7A96CC #A6B9DD

Accessibility & contrast

On white

4.67

#4E73BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#4E73BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73BB

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73BB	#FFFFFF	#000000	##FFFFFF
##4E73BB	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5579BE

Deuteranopia (green-blind)

#476FB9

Tritanopia (blue-blind)

#00838E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4e73bb;
/* rgb */ color: rgb(78, 115, 187);
/* oklch */ color: oklch(56.2% 0.120 262.6);

Tailwind

colors: {
  custom: {
    50: '#889ad0',
    500: '#4e73bb',
    950: '#000000',
  },
}

SCSS

$custom: #4e73bb;
$custom-light: #889ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73bb",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 187
  },
  "hsl": {
    "h": 219.633,
    "s": 44.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.56182,
    "c": 0.11982,
    "h": 262.6
  },
  "luminance": 0.17469
}

Semantic roles & 50–950 ramp

primary

#4E73BB

secondary

#CABA9B

accent

#A954D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4E73BB

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

Preview Lab → · Contrast checker → · Palette generator →