#4E51E7#4E51E7

#4E51E7 is a mid, highly saturated blue. Relative luminance 0.133; OKLCH L 52.9% C 0.221 H 274.9°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#4E51E7
RGB	rgb(78, 81, 231)
HSL	hsl(239, 76%, 61%)
HSV	hsv(239, 66%, 91%)
CMYK	cmyk(66.2%, 64.9%, 0%, 9.4%)
CIE-LAB	lab(43.17, 44.82, -76.22)
CIE-LCH	lch(43.17, 88.42, 300.46°)
OKLab	oklab(52.85% 0.019 -0.22)
OKLCH	oklch(52.85% 0.221 274.9)
XYZ	xyz(20.5034, 13.2722, 77.0671)
Luminance	0.1327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51E7 #E7E44E

analogous

#4E9DE7 #4E51E7 #984EE7

triadic

#4E51E7 #E74E51 #51E74E

tetradic

#4E51E7 #E74E9D #E7E44E #4EE798

square

#4E51E7 #E74E9D #E7E44E #4EE798

split-complementary

#4E51E7 #E7984E #9DE74E

monochromatic

#1619A4 #1E21DA #4E51E7 #8486EE #BABBF6

Accessibility & contrast

On white

5.75

#4E51E7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#4E51E7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51E7

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51E7	#FFFFFF	#000000	##FFFFFF
##4E51E7	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DEC

Deuteranopia (green-blind)

#005FE4

Tritanopia (blue-blind)

#007895

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4e51e7;
/* rgb */ color: rgb(78, 81, 231);
/* oklch */ color: oklch(52.9% 0.221 274.9);

Tailwind

colors: {
  custom: {
    50: '#9182f0',
    500: '#4e51e7',
    950: '#000000',
  },
}

SCSS

$custom: #4e51e7;
$custom-light: #9182f0;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51e7",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 231
  },
  "hsl": {
    "h": 238.824,
    "s": 76.119,
    "l": 60.588
  },
  "oklch": {
    "l": 0.52854,
    "c": 0.22081,
    "h": 274.9
  },
  "luminance": 0.13274
}

Semantic roles & 50–950 ramp

primary

#4E51E7

secondary

#E5E4AB

accent

#D40DD8

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A17

muted

#7E7C85

Preview Lab

Preview with #4E51E7

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

Preview Lab → · Contrast checker → · Palette generator →