#3B40C2#3B40C2

#3B40C2 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.6% C 0.198 H 273.7°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#3B40C2
RGB	rgb(59, 64, 194)
HSL	hsl(238, 53%, 50%)
HSV	hsv(238, 70%, 76%)
CMYK	cmyk(69.6%, 67%, 0%, 23.9%)
CIE-LAB	lab(34.98, 40.29, -68.39)
CIE-LCH	lch(34.98, 79.37, 300.50°)
OKLab	oklab(45.61% 0.0126 -0.1976)
OKLCH	oklch(45.61% 0.198 273.7)
XYZ	xyz(13.3714, 8.4904, 51.9626)
Luminance	0.0849 (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

#3B40C2 #C2BD3B

analogous

#3B83C2 #3B40C2 #7A3BC2

triadic

#3B40C2 #C23B40 #40C23B

tetradic

#3B40C2 #C23B83 #C2BD3B #3BC27A

square

#3B40C2 #C23B83 #C2BD3B #3BC27A

split-complementary

#3B40C2 #C27A3B #83C23B

monochromatic

#1E2164 #2D3193 #3B40C2 #696DD1 #989AE0

Accessibility & contrast

On white

7.78

#3B40C2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3B40C2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B40C2

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B40C2	#FFFFFF	#000000	##FFFFFF
##3B40C2	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C6

Deuteranopia (green-blind)

#004CC0

Tritanopia (blue-blind)

#00637B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3b40c2;
/* rgb */ color: rgb(59, 64, 194);
/* oklch */ color: oklch(45.6% 0.198 273.7);

Tailwind

colors: {
  custom: {
    50: '#8375d6',
    500: '#3b40c2',
    950: '#000000',
  },
}

SCSS

$custom: #3b40c2;
$custom-light: #8375d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3b40c2",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 194
  },
  "hsl": {
    "h": 237.778,
    "s": 53.36,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45611,
    "c": 0.19799,
    "h": 273.7
  },
  "luminance": 0.08492
}

Semantic roles & 50–950 ramp

primary

#3B40C2

secondary

#CBC98E

accent

#D74BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3B40C2

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

Preview Lab → · Contrast checker → · Palette generator →