#4E51E3#4E51E3

#4E51E3 is a mid, highly saturated blue. Relative luminance 0.131; OKLCH L 52.5% C 0.216 H 275.1°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#4E51E3
RGB	rgb(78, 81, 227)
HSL	hsl(239, 73%, 60%)
HSV	hsv(239, 66%, 89%)
CMYK	cmyk(65.6%, 64.3%, 0%, 11%)
CIE-LAB	lab(42.84, 43.51, -74.50)
CIE-LCH	lch(42.84, 86.28, 300.29°)
OKLab	oklab(52.51% 0.0194 -0.2149)
OKLCH	oklch(52.51% 0.216 275.1)
XYZ	xyz(19.9449, 13.0489, 74.1258)
Luminance	0.1305 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51E3 #E3E04E

analogous

#4E9CE3 #4E51E3 #964EE3

triadic

#4E51E3 #E34E51 #51E34E

tetradic

#4E51E3 #E34E9C #E3E04E #4EE396

square

#4E51E3 #E34E9C #E3E04E #4EE396

split-complementary

#4E51E3 #E3964E #9CE34E

monochromatic

#191C9E #2125D3 #4E51E3 #8385EB #B8B9F4

Accessibility & contrast

On white

5.82

#4E51E3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#4E51E3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51E3

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51E3	#FFFFFF	#000000	##FFFFFF
##4E51E3	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CE8

Deuteranopia (green-blind)

#005EE0

Tritanopia (blue-blind)

#007793

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4e51e3;
/* rgb */ color: rgb(78, 81, 227);
/* oklch */ color: oklch(52.5% 0.216 275.1);

Tailwind

colors: {
  custom: {
    50: '#9182ed',
    500: '#4e51e3',
    950: '#000000',
  },
}

SCSS

$custom: #4e51e3;
$custom-light: #9182ed;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51e3",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 227
  },
  "hsl": {
    "h": 238.792,
    "s": 72.683,
    "l": 59.804
  },
  "oklch": {
    "l": 0.52508,
    "c": 0.21582,
    "h": 275.1
  },
  "luminance": 0.13051
}

Semantic roles & 50–950 ramp

primary

#4E51E3

secondary

#E3E2AA

accent

#EC38EF

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4E51E3

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

Preview Lab → · Contrast checker → · Palette generator →