#3E51BA#3E51BA

#3E51BA is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.2% C 0.166 H 271.1°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#3E51BA
RGB	rgb(62, 81, 186)
HSL	hsl(231, 50%, 49%)
HSV	hsv(231, 67%, 73%)
CMYK	cmyk(66.7%, 56.5%, 0%, 27.1%)
CIE-LAB	lab(38.64, 27.19, -57.72)
CIE-LCH	lch(38.64, 63.81, 295.23°)
OKLab	oklab(48.15% 0.0031 -0.1661)
OKLCH	oklch(48.15% 0.166 271.1)
XYZ	xyz(13.7890, 10.4529, 47.7358)
Luminance	0.1045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E51BA #BAA73E

analogous

#3E8FBA #3E51BA #693EBA

triadic

#3E51BA #BA3E51 #51BA3E

tetradic

#3E51BA #BA3E8F #BAA73E #3EBA69

square

#3E51BA #BA3E8F #BAA73E #3EBA69

split-complementary

#3E51BA #BA693E #8FBA3E

monochromatic

#1F295E #2F3D8C #3E51BA #6878CD #96A1DC

Accessibility & contrast

On white

6.79

#3E51BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#3E51BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E51BA

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E51BA	#FFFFFF	#000000	##FFFFFF
##3E51BA	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BE

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3e51ba;
/* rgb */ color: rgb(62, 81, 186);
/* oklch */ color: oklch(48.2% 0.166 271.1);

Tailwind

colors: {
  custom: {
    50: '#8181cf',
    500: '#3e51ba',
    950: '#000000',
  },
}

SCSS

$custom: #3e51ba;
$custom-light: #8181cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3e51ba",
  "rgb": {
    "r": 62,
    "g": 81,
    "b": 186
  },
  "hsl": {
    "h": 230.806,
    "s": 50,
    "l": 48.627
  },
  "oklch": {
    "l": 0.48152,
    "c": 0.16611,
    "h": 271.1
  },
  "luminance": 0.10454
}

Semantic roles & 50–950 ramp

primary

#3E51BA

secondary

#C8BF8C

accent

#C44EDA

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #3E51BA

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

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