#3E51BD#3E51BD

#3E51BD is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.4% C 0.170 H 271.1°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#3E51BD
RGB	rgb(62, 81, 189)
HSL	hsl(231, 51%, 49%)
HSV	hsv(231, 67%, 74%)
CMYK	cmyk(67.2%, 57.1%, 0%, 25.9%)
CIE-LAB	lab(38.87, 28.26, -59.12)
CIE-LCH	lch(38.87, 65.52, 295.55°)
OKLab	oklab(48.39% 0.0032 -0.1702)
OKLCH	oklch(48.39% 0.17 271.1)
XYZ	xyz(14.1112, 10.5818, 49.4331)
Luminance	0.1058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E51BD #BDAA3E

analogous

#3E91BD #3E51BD #6B3EBD

triadic

#3E51BD #BD3E51 #51BD3E

tetradic

#3E51BD #BD3E91 #BDAA3E #3EBD6B

square

#3E51BD #BD3E91 #BDAA3E #3EBD6B

split-complementary

#3E51BD #BD6B3E #91BD3E

monochromatic

#202A61 #2F3D8F #3E51BD #6A79CE #98A2DD

Accessibility & contrast

On white

6.74

#3E51BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3E51BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E51BD

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E51BD	#FFFFFF	#000000	##FFFFFF
##3E51BD	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C1

Deuteranopia (green-blind)

#0056BB

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3e51bd;
/* rgb */ color: rgb(62, 81, 189);
/* oklch */ color: oklch(48.4% 0.170 271.1);

Tailwind

colors: {
  custom: {
    50: '#8281d2',
    500: '#3e51bd',
    950: '#000000',
  },
}

SCSS

$custom: #3e51bd;
$custom-light: #8281d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3e51bd",
  "rgb": {
    "r": 62,
    "g": 81,
    "b": 189
  },
  "hsl": {
    "h": 231.024,
    "s": 50.598,
    "l": 49.216
  },
  "oklch": {
    "l": 0.4839,
    "c": 0.17021,
    "h": 271.1
  },
  "luminance": 0.10583
}

Semantic roles & 50–950 ramp

primary

#3E51BD

secondary

#C9C08E

accent

#C54EDA

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3E51BD

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

Preview Lab → · Contrast checker → · Palette generator →