#3E51C4#3E51C4

#3E51C4 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 49.0% C 0.180 H 271.0°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#3E51C4
RGB	rgb(62, 81, 196)
HSL	hsl(231, 53%, 51%)
HSV	hsv(231, 68%, 77%)
CMYK	cmyk(68.4%, 58.7%, 0%, 23.1%)
CIE-LAB	lab(39.40, 30.74, -62.33)
CIE-LCH	lch(39.40, 69.50, 296.25°)
OKLab	oklab(48.95% 0.0033 -0.1796)
OKLCH	oklch(48.95% 0.18 271)
XYZ	xyz(14.8895, 10.8931, 53.5317)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E51C4 #C4B13E

analogous

#3E94C4 #3E51C4 #6E3EC4

triadic

#3E51C4 #C43E51 #51C43E

tetradic

#3E51C4 #C43E94 #C4B13E #3EC46E

square

#3E51C4 #C43E94 #C4B13E #3EC46E

split-complementary

#3E51C4 #C46E3E #94C43E

monochromatic

#202A68 #2E3D97 #3E51C4 #6D7BD2 #9CA6E1

Accessibility & contrast

On white

6.61

#3E51C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3E51C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E51C4

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E51C4	#FFFFFF	#000000	##FFFFFF
##3E51C4	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C8

Deuteranopia (green-blind)

#0057C2

Tritanopia (blue-blind)

#006D82

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3e51c4;
/* rgb */ color: rgb(62, 81, 196);
/* oklch */ color: oklch(49.0% 0.180 271.0);

Tailwind

colors: {
  custom: {
    50: '#8381d7',
    500: '#3e51c4',
    950: '#000000',
  },
}

SCSS

$custom: #3e51c4;
$custom-light: #8381d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3e51c4",
  "rgb": {
    "r": 62,
    "g": 81,
    "b": 196
  },
  "hsl": {
    "h": 231.493,
    "s": 53.175,
    "l": 50.588
  },
  "oklch": {
    "l": 0.48954,
    "c": 0.17967,
    "h": 271
  },
  "luminance": 0.10895
}

Semantic roles & 50–950 ramp

primary

#3E51C4

secondary

#CDC491

accent

#C84BDD

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3E51C4

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

Preview Lab → · Contrast checker → · Palette generator →