#4E51E0#4E51E0

#4E51E0 is a mid, highly saturated blue. Relative luminance 0.129; OKLCH L 52.3% C 0.212 H 275.3°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#4E51E0
RGB	rgb(78, 81, 224)
HSL	hsl(239, 70%, 59%)
HSV	hsv(239, 65%, 88%)
CMYK	cmyk(65.2%, 63.8%, 0%, 12.2%)
CIE-LAB	lab(42.59, 42.53, -73.20)
CIE-LCH	lch(42.59, 84.66, 300.16°)
OKLab	oklab(52.25% 0.0196 -0.2111)
OKLCH	oklch(52.25% 0.212 275.3)
XYZ	xyz(19.5344, 12.8847, 71.9641)
Luminance	0.1289 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51E0 #E0DD4E

analogous

#4E9AE0 #4E51E0 #944EE0

triadic

#4E51E0 #E04E51 #51E04E

tetradic

#4E51E0 #E04E9A #E0DD4E #4EE094

square

#4E51E0 #E04E9A #E0DD4E #4EE094

split-complementary

#4E51E0 #E0944E #9AE04E

monochromatic

#1B1D99 #2427CD #4E51E0 #8284E9 #B6B7F2

Accessibility & contrast

On white

5.87

#4E51E0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#4E51E0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51E0

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51E0	#FFFFFF	#000000	##FFFFFF
##4E51E0	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE5

Deuteranopia (green-blind)

#005EDD

Tritanopia (blue-blind)

#007691

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4e51e0;
/* rgb */ color: rgb(78, 81, 224);
/* oklch */ color: oklch(52.3% 0.212 275.3);

Tailwind

colors: {
  custom: {
    50: '#9082eb',
    500: '#4e51e0',
    950: '#000000',
  },
}

SCSS

$custom: #4e51e0;
$custom-light: #9082eb;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51e0",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 224
  },
  "hsl": {
    "h": 238.767,
    "s": 70.192,
    "l": 59.216
  },
  "oklch": {
    "l": 0.52251,
    "c": 0.21204,
    "h": 275.3
  },
  "luminance": 0.12886
}

Semantic roles & 50–950 ramp

primary

#4E51E0

secondary

#E1E0A8

accent

#E93BED

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4E51E0

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

Preview Lab → · Contrast checker → · Palette generator →