#4E73AB#4E73AB

#4E73AB is a mid, moderate blue. Relative luminance 0.168; OKLCH L 55.3% C 0.097 H 258.4°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#4E73AB
RGB	rgb(78, 115, 171)
HSL	hsl(216, 37%, 49%)
HSV	hsv(216, 54%, 67%)
CMYK	cmyk(54.4%, 32.7%, 0%, 32.9%)
CIE-LAB	lab(48.03, 3.60, -33.89)
CIE-LCH	lch(48.03, 34.08, 276.06°)
OKLab	oklab(55.29% -0.0195 -0.0955)
OKLCH	oklch(55.29% 0.097 258.4)
XYZ	xyz(16.6208, 16.8202, 40.8909)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E73AB #AB864E

analogous

#4EA2AB #4E73AB #584EAB

triadic

#4E73AB #AB4E73 #73AB4E

tetradic

#4E73AB #AB4EA2 #AB864E #4EAB58

square

#4E73AB #AB4EA2 #AB864E #4EAB58

split-complementary

#4E73AB #AB584E #A2AB4E

monochromatic

#283A57 #3B5781 #4E73AB #7693C0 #A0B4D4

Accessibility & contrast

On white

4.81

#4E73AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#4E73AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E73AB

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E73AB	#FFFFFF	#000000	##FFFFFF
##4E73AB	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D77AD

Deuteranopia (green-blind)

#516EAA

Tritanopia (blue-blind)

#197F87

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #4e73ab;
/* rgb */ color: rgb(78, 115, 171);
/* oklch */ color: oklch(55.3% 0.097 258.4);

Tailwind

colors: {
  custom: {
    50: '#869bc4',
    500: '#4e73ab',
    950: '#000000',
  },
}

SCSS

$custom: #4e73ab;
$custom-light: #869bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#4e73ab",
  "rgb": {
    "r": 78,
    "g": 115,
    "b": 171
  },
  "hsl": {
    "h": 216.129,
    "s": 37.349,
    "l": 48.824
  },
  "oklch": {
    "l": 0.55286,
    "c": 0.09746,
    "h": 258.4
  },
  "luminance": 0.16821
}

Semantic roles & 50–950 ramp

primary

#4E73AB

secondary

#C1AF94

accent

#A05ACD

background

#F8F9FC

surface

#F0F2F8

border

#CBCCD1

text

#0C0E12

muted

#7D7E81

Preview Lab

Preview with #4E73AB

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

Preview Lab → · Contrast checker → · Palette generator →