#3E51C7#3E51C7

#3E51C7 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.2% C 0.184 H 271.0°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3E51C7
RGB	rgb(62, 81, 199)
HSL	hsl(232, 55%, 51%)
HSV	hsv(232, 69%, 78%)
CMYK	cmyk(68.8%, 59.3%, 0%, 22%)
CIE-LAB	lab(39.63, 31.81, -63.70)
CIE-LCH	lch(39.63, 71.20, 296.53°)
OKLab	oklab(49.2% 0.0033 -0.1836)
OKLCH	oklch(49.2% 0.184 271)
XYZ	xyz(15.2343, 11.0310, 55.3481)
Luminance	0.1103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E51C7 #C7B43E

analogous

#3E95C7 #3E51C7 #6F3EC7

triadic

#3E51C7 #C73E51 #51C73E

tetradic

#3E51C7 #C73E95 #C7B43E #3EC76F

square

#3E51C7 #C73E95 #C7B43E #3EC76F

split-complementary

#3E51C7 #C76F3E #95C73E

monochromatic

#1F2A6B #2D3C9B #3E51C7 #6D7CD5 #9DA7E3

Accessibility & contrast

On white

6.55

#3E51C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3E51C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E51C7

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E51C7	#FFFFFF	#000000	##FFFFFF
##3E51C7	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064CB

Deuteranopia (green-blind)

#0057C5

Tritanopia (blue-blind)

#006E84

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3e51c7;
/* rgb */ color: rgb(62, 81, 199);
/* oklch */ color: oklch(49.2% 0.184 271.0);

Tailwind

colors: {
  custom: {
    50: '#8481d9',
    500: '#3e51c7',
    950: '#000000',
  },
}

SCSS

$custom: #3e51c7;
$custom-light: #8481d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3e51c7",
  "rgb": {
    "r": 62,
    "g": 81,
    "b": 199
  },
  "hsl": {
    "h": 231.679,
    "s": 55.02,
    "l": 51.176
  },
  "oklch": {
    "l": 0.492,
    "c": 0.18367,
    "h": 271
  },
  "luminance": 0.11033
}

Semantic roles & 50–950 ramp

primary

#3E51C7

secondary

#CFC692

accent

#CA49DE

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3E51C7

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

Preview Lab → · Contrast checker → · Palette generator →