#4E51E1#4E51E1

#4E51E1 is a mid, highly saturated blue. Relative luminance 0.129; OKLCH L 52.3% C 0.213 H 275.3°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#4E51E1
RGB	rgb(78, 81, 225)
HSL	hsl(239, 71%, 59%)
HSV	hsv(239, 65%, 88%)
CMYK	cmyk(65.3%, 64%, 0%, 11.8%)
CIE-LAB	lab(42.67, 42.86, -73.63)
CIE-LCH	lch(42.67, 85.20, 300.20°)
OKLab	oklab(52.34% 0.0195 -0.2124)
OKLCH	oklch(52.34% 0.213 275.3)
XYZ	xyz(19.6704, 12.9391, 72.6804)
Luminance	0.1294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51E1 #E1DE4E

analogous

#4E9AE1 #4E51E1 #954EE1

triadic

#4E51E1 #E14E51 #51E14E

tetradic

#4E51E1 #E14E9A #E1DE4E #4EE195

square

#4E51E1 #E14E9A #E1DE4E #4EE195

split-complementary

#4E51E1 #E1954E #9AE14E

monochromatic

#1A1D9A #2327CF #4E51E1 #8284EA #B7B8F3

Accessibility & contrast

On white

5.85

#4E51E1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#4E51E1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51E1

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51E1	#FFFFFF	#000000	##FFFFFF
##4E51E1	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE6

Deuteranopia (green-blind)

#005EDE

Tritanopia (blue-blind)

#007692

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4e51e1;
/* rgb */ color: rgb(78, 81, 225);
/* oklch */ color: oklch(52.3% 0.213 275.3);

Tailwind

colors: {
  custom: {
    50: '#9082eb',
    500: '#4e51e1',
    950: '#000000',
  },
}

SCSS

$custom: #4e51e1;
$custom-light: #9082eb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51e1",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 225
  },
  "hsl": {
    "h": 238.776,
    "s": 71.014,
    "l": 59.412
  },
  "oklch": {
    "l": 0.52337,
    "c": 0.21331,
    "h": 275.3
  },
  "luminance": 0.12941
}

Semantic roles & 50–950 ramp

primary

#4E51E1

secondary

#E2E1A9

accent

#EA3AEE

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4E51E1

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

Preview Lab → · Contrast checker → · Palette generator →