#3B40CD#3B40CD

#3B40CD is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.6% C 0.212 H 273.1°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#3B40CD
RGB	rgb(59, 64, 205)
HSL	hsl(238, 59%, 52%)
HSV	hsv(238, 71%, 80%)
CMYK	cmyk(71.2%, 68.8%, 0%, 19.6%)
CIE-LAB	lab(35.99, 44.01, -73.15)
CIE-LCH	lch(35.99, 85.37, 301.03°)
OKLab	oklab(46.65% 0.0114 -0.2115)
OKLCH	oklch(46.65% 0.212 273.1)
XYZ	xyz(14.6528, 9.0029, 58.7113)
Luminance	0.0900 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.70

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B40CD #CDC83B

analogous

#3B89CD #3B40CD #7F3BCD

triadic

#3B40CD #CD3B40 #40CD3B

tetradic

#3B40CD #CD3B89 #CDC83B #3BCD7F

square

#3B40CD #CD3B89 #CDC83B #3BCD7F

split-complementary

#3B40CD #CD7F3B #89CD3B

monochromatic

#1D2071 #292DA2 #3B40CD #6C70D9 #9D9FE6

Accessibility & contrast

On white

7.50

#3B40CD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3B40CD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B40CD

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B40CD	#FFFFFF	#000000	##FFFFFF
##3B40CD	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD1

Deuteranopia (green-blind)

#004ECA

Tritanopia (blue-blind)

#006781

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3b40cd;
/* rgb */ color: rgb(59, 64, 205);
/* oklch */ color: oklch(46.6% 0.212 273.1);

Tailwind

colors: {
  custom: {
    50: '#8576dd',
    500: '#3b40cd',
    950: '#000000',
  },
}

SCSS

$custom: #3b40cd;
$custom-light: #8576dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3b40cd",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 205
  },
  "hsl": {
    "h": 237.945,
    "s": 59.35,
    "l": 51.765
  },
  "oklch": {
    "l": 0.46645,
    "c": 0.21181,
    "h": 273.1
  },
  "luminance": 0.09004
}

Semantic roles & 50–950 ramp

primary

#3B40CD

secondary

#D2D092

accent

#DD45E3

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3B40CD

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

Preview Lab → · Contrast checker → · Palette generator →