#3B40CA#3B40CA

#3B40CA is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.4% C 0.208 H 273.2°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#3B40CA
RGB	rgb(59, 64, 202)
HSL	hsl(238, 57%, 51%)
HSV	hsv(238, 71%, 79%)
CMYK	cmyk(70.8%, 68.3%, 0%, 20.8%)
CIE-LAB	lab(35.71, 43.00, -71.86)
CIE-LCH	lch(35.71, 83.74, 300.89°)
OKLab	oklab(46.36% 0.0117 -0.2077)
OKLCH	oklch(46.36% 0.208 273.2)
XYZ	xyz(14.2941, 8.8595, 56.8224)
Luminance	0.0886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.53

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B40CA #CAC53B

analogous

#3B87CA #3B40CA #7D3BCA

triadic

#3B40CA #CA3B40 #40CA3B

tetradic

#3B40CA #CA3B87 #CAC53B #3BCA7D

square

#3B40CA #CA3B87 #CAC53B #3BCA7D

split-complementary

#3B40CA #CA7D3B #87CA3B

monochromatic

#1E206D #2B2F9D #3B40CA #6B6FD7 #9B9EE4

Accessibility & contrast

On white

7.58

#3B40CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3B40CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B40CA

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B40CA	#FFFFFF	#000000	##FFFFFF
##3B40CA	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCE

Deuteranopia (green-blind)

#004DC7

Tritanopia (blue-blind)

#006580

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3b40ca;
/* rgb */ color: rgb(59, 64, 202);
/* oklch */ color: oklch(46.4% 0.208 273.2);

Tailwind

colors: {
  custom: {
    50: '#8575db',
    500: '#3b40ca',
    950: '#000000',
  },
}

SCSS

$custom: #3b40ca;
$custom-light: #8575db;
$custom-dark: #000000;

JSON

{
  "hex": "#3b40ca",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 202
  },
  "hsl": {
    "h": 237.902,
    "s": 57.43,
    "l": 51.176
  },
  "oklch": {
    "l": 0.4636,
    "c": 0.20808,
    "h": 273.2
  },
  "luminance": 0.08861
}

Semantic roles & 50–950 ramp

primary

#3B40CA

secondary

#D0CE91

accent

#DB47E1

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3B40CA

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

Preview Lab → · Contrast checker → · Palette generator →