#3B40C3#3B40C3

#3B40C3 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.7% C 0.199 H 273.6°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#3B40C3
RGB	rgb(59, 64, 195)
HSL	hsl(238, 54%, 50%)
HSV	hsv(238, 70%, 76%)
CMYK	cmyk(69.7%, 67.2%, 0%, 23.5%)
CIE-LAB	lab(35.07, 40.63, -68.83)
CIE-LCH	lch(35.07, 79.92, 300.55°)
OKLab	oklab(45.7% 0.0125 -0.1989)
OKLCH	oklch(45.7% 0.199 273.6)
XYZ	xyz(13.4841, 8.5354, 52.5561)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B40C3 #C3BE3B

analogous

#3B84C3 #3B40C3 #7A3BC3

triadic

#3B40C3 #C33B40 #40C33B

tetradic

#3B40C3 #C33B84 #C3BE3B #3BC37A

square

#3B40C3 #C33B84 #C3BE3B #3BC37A

split-complementary

#3B40C3 #C37A3B #84C33B

monochromatic

#1F2165 #2D3194 #3B40C3 #696DD2 #989BE0

Accessibility & contrast

On white

7.76

#3B40C3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#3B40C3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B40C3

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B40C3	#FFFFFF	#000000	##FFFFFF
##3B40C3	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C7

Deuteranopia (green-blind)

#004CC1

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3b40c3;
/* rgb */ color: rgb(59, 64, 195);
/* oklch */ color: oklch(45.7% 0.199 273.6);

Tailwind

colors: {
  custom: {
    50: '#8375d6',
    500: '#3b40c3',
    950: '#000000',
  },
}

SCSS

$custom: #3b40c3;
$custom-light: #8375d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3b40c3",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 195
  },
  "hsl": {
    "h": 237.794,
    "s": 53.543,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45704,
    "c": 0.19926,
    "h": 273.6
  },
  "luminance": 0.08537
}

Semantic roles & 50–950 ramp

primary

#3B40C3

secondary

#CCC98E

accent

#D84BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3B40C3

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

Preview Lab → · Contrast checker → · Palette generator →