#3B40C7#3B40C7

#3B40C7 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.1% C 0.204 H 273.4°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#3B40C7
RGB	rgb(59, 64, 199)
HSL	hsl(238, 56%, 51%)
HSV	hsv(238, 70%, 78%)
CMYK	cmyk(70.4%, 67.8%, 0%, 22%)
CIE-LAB	lab(35.44, 41.98, -70.57)
CIE-LCH	lch(35.44, 82.11, 300.75°)
OKLab	oklab(46.08% 0.0121 -0.204)
OKLCH	oklch(46.08% 0.204 273.4)
XYZ	xyz(13.9424, 8.7188, 54.9699)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.42

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B40C7 #C7C23B

analogous

#3B86C7 #3B40C7 #7C3BC7

triadic

#3B40C7 #C73B40 #40C73B

tetradic

#3B40C7 #C73B86 #C7C23B #3BC77C

square

#3B40C7 #C73B86 #C7C23B #3BC77C

split-complementary

#3B40C7 #C77C3B #86C73B

monochromatic

#1E2169 #2C3099 #3B40C7 #6B6ED5 #9A9DE2

Accessibility & contrast

On white

7.65

#3B40C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#3B40C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B40C7

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B40C7	#FFFFFF	#000000	##FFFFFF
##3B40C7	1.00	7.65	2.74	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACB

Deuteranopia (green-blind)

#004DC4

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3b40c7;
/* rgb */ color: rgb(59, 64, 199);
/* oklch */ color: oklch(46.1% 0.204 273.4);

Tailwind

colors: {
  custom: {
    50: '#8475d9',
    500: '#3b40c7',
    950: '#000000',
  },
}

SCSS

$custom: #3b40c7;
$custom-light: #8475d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3b40c7",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 199
  },
  "hsl": {
    "h": 237.857,
    "s": 55.556,
    "l": 50.588
  },
  "oklch": {
    "l": 0.46077,
    "c": 0.20432,
    "h": 273.4
  },
  "luminance": 0.0872
}

Semantic roles & 50–950 ramp

primary

#3B40C7

secondary

#CECC90

accent

#DA49DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3B40C7

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

Preview Lab → · Contrast checker → · Palette generator →