#3B40C8#3B40C8

#3B40C8 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.2% C 0.206 H 273.3°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#3B40C8
RGB	rgb(59, 64, 200)
HSL	hsl(238, 56%, 51%)
HSV	hsv(238, 71%, 78%)
CMYK	cmyk(70.5%, 68%, 0%, 21.6%)
CIE-LAB	lab(35.53, 42.32, -71.00)
CIE-LCH	lch(35.53, 82.66, 300.80°)
OKLab	oklab(46.17% 0.012 -0.2052)
OKLCH	oklch(46.17% 0.206 273.3)
XYZ	xyz(14.0589, 8.7654, 55.5834)
Luminance	0.0877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.45

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B40C8 #C8C33B

analogous

#3B87C8 #3B40C8 #7C3BC8

triadic

#3B40C8 #C83B40 #40C83B

tetradic

#3B40C8 #C83B87 #C8C33B #3BC87C

square

#3B40C8 #C83B87 #C8C33B #3BC87C

split-complementary

#3B40C8 #C87C3B #87C83B

monochromatic

#1E216B #2B2F9A #3B40C8 #6B6FD5 #9B9DE3

Accessibility & contrast

On white

7.63

#3B40C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#3B40C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B40C8

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B40C8	#FFFFFF	#000000	##FFFFFF
##3B40C8	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACC

Deuteranopia (green-blind)

#004DC5

Tritanopia (blue-blind)

#00657F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3b40c8;
/* rgb */ color: rgb(59, 64, 200);
/* oklch */ color: oklch(46.2% 0.206 273.3);

Tailwind

colors: {
  custom: {
    50: '#8475da',
    500: '#3b40c8',
    950: '#000000',
  },
}

SCSS

$custom: #3b40c8;
$custom-light: #8475da;
$custom-dark: #000000;

JSON

{
  "hex": "#3b40c8",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 200
  },
  "hsl": {
    "h": 237.872,
    "s": 56.175,
    "l": 50.784
  },
  "oklch": {
    "l": 0.46171,
    "c": 0.20558,
    "h": 273.3
  },
  "luminance": 0.08767
}

Semantic roles & 50–950 ramp

primary

#3B40C8

secondary

#CFCC90

accent

#DA48DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3B40C8

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

Preview Lab → · Contrast checker → · Palette generator →