#4E51C9#4E51C9

#4E51C9 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.3% C 0.182 H 276.6°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#4E51C9
RGB	rgb(78, 81, 201)
HSL	hsl(239, 53%, 55%)
HSV	hsv(239, 61%, 79%)
CMYK	cmyk(61.2%, 59.7%, 0%, 21.2%)
CIE-LAB	lab(40.77, 34.93, -62.97)
CIE-LCH	lch(40.77, 72.00, 299.02°)
OKLab	oklab(50.35% 0.0208 -0.1811)
OKLCH	oklch(50.35% 0.182 276.6)
XYZ	xyz(16.6235, 11.7203, 56.6333)
Luminance	0.1172 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4E51C9 #C9C64E

analogous

#4E8EC9 #4E51C9 #894EC9

triadic

#4E51C9 #C94E51 #51C94E

tetradic

#4E51C9 #C94E8E #C9C64E #4EC989

square

#4E51C9 #C94E8E #C9C64E #4EC989

split-complementary

#4E51C9 #C9894E #8EC94E

monochromatic

#252778 #3336A7 #4E51C9 #7D7FD7 #ACADE6

Accessibility & contrast

On white

6.28

#4E51C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#4E51C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4E51C9

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4E51C9	#FFFFFF	#000000	##FFFFFF
##4E51C9	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CD

Deuteranopia (green-blind)

#005BC7

Tritanopia (blue-blind)

#006E85

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4e51c9;
/* rgb */ color: rgb(78, 81, 201);
/* oklch */ color: oklch(50.3% 0.182 276.6);

Tailwind

colors: {
  custom: {
    50: '#8c82da',
    500: '#4e51c9',
    950: '#000000',
  },
}

SCSS

$custom: #4e51c9;
$custom-light: #8c82da;
$custom-dark: #000000;

JSON

{
  "hex": "#4e51c9",
  "rgb": {
    "r": 78,
    "g": 81,
    "b": 201
  },
  "hsl": {
    "h": 238.537,
    "s": 53.247,
    "l": 54.706
  },
  "oklch": {
    "l": 0.50348,
    "c": 0.18228,
    "h": 276.6
  },
  "luminance": 0.11722
}

Semantic roles & 50–950 ramp

primary

#4E51C9

secondary

#D3D29F

accent

#D94BDD

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4E51C9

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

Preview Lab → · Contrast checker → · Palette generator →