#3E51CB#3E51CB

#3E51CB is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.5% C 0.189 H 271.0°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#3E51CB
RGB	rgb(62, 81, 203)
HSL	hsl(232, 58%, 52%)
HSV	hsv(232, 69%, 80%)
CMYK	cmyk(69.5%, 60.1%, 0%, 20.4%)
CIE-LAB	lab(39.95, 33.22, -65.50)
CIE-LCH	lch(39.95, 73.44, 296.89°)
OKLab	oklab(49.53% 0.0032 -0.1889)
OKLCH	oklch(49.53% 0.189 271)
XYZ	xyz(15.7049, 11.2193, 57.8262)
Luminance	0.1122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E51CB #CBB83E

analogous

#3E98CB #3E51CB #723ECB

triadic

#3E51CB #CB3E51 #51CB3E

tetradic

#3E51CB #CB3E98 #CBB83E #3ECB72

square

#3E51CB #CB3E98 #CBB83E #3ECB72

split-complementary

#3E51CB #CB723E #98CB3E

monochromatic

#1E2970 #2B3BA1 #3E51CB #6E7CD8 #9EA8E5

Accessibility & contrast

On white

6.47

#3E51CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#3E51CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E51CB

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E51CB	#FFFFFF	#000000	##FFFFFF
##3E51CB	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CF

Deuteranopia (green-blind)

#0058C9

Tritanopia (blue-blind)

#007086

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3e51cb;
/* rgb */ color: rgb(62, 81, 203);
/* oklch */ color: oklch(49.5% 0.189 271.0);

Tailwind

colors: {
  custom: {
    50: '#8581dc',
    500: '#3e51cb',
    950: '#000000',
  },
}

SCSS

$custom: #3e51cb;
$custom-light: #8581dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3e51cb",
  "rgb": {
    "r": 62,
    "g": 81,
    "b": 203
  },
  "hsl": {
    "h": 231.915,
    "s": 57.551,
    "l": 51.961
  },
  "oklch": {
    "l": 0.49532,
    "c": 0.18897,
    "h": 271
  },
  "luminance": 0.11221
}

Semantic roles & 50–950 ramp

primary

#3E51CB

secondary

#D1C994

accent

#CC47E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3E51CB

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

Preview Lab → · Contrast checker → · Palette generator →