#3B40CC#3B40CC

#3B40CC is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.6% C 0.211 H 273.1°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#3B40CC
RGB	rgb(59, 64, 204)
HSL	hsl(238, 59%, 52%)
HSV	hsv(238, 71%, 80%)
CMYK	cmyk(71.1%, 68.6%, 0%, 20%)
CIE-LAB	lab(35.90, 43.67, -72.72)
CIE-LCH	lch(35.90, 84.83, 300.99°)
OKLab	oklab(46.55% 0.0115 -0.2103)
OKLCH	oklch(46.55% 0.211 273.1)
XYZ	xyz(14.5325, 8.9548, 58.0776)
Luminance	0.0896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.64

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B40CC #CCC73B

analogous

#3B89CC #3B40CC #7F3BCC

triadic

#3B40CC #CC3B40 #40CC3B

tetradic

#3B40CC #CC3B89 #CCC73B #3BCC7F

square

#3B40CC #CC3B89 #CCC73B #3BCC7F

split-complementary

#3B40CC #CC7F3B #89CC3B

monochromatic

#1D2070 #2A2EA0 #3B40CC #6C6FD9 #9C9FE5

Accessibility & contrast

On white

7.52

#3B40CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3B40CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B40CC

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B40CC	#FFFFFF	#000000	##FFFFFF
##3B40CC	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BD0

Deuteranopia (green-blind)

#004EC9

Tritanopia (blue-blind)

#006681

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3b40cc;
/* rgb */ color: rgb(59, 64, 204);
/* oklch */ color: oklch(46.6% 0.211 273.1);

Tailwind

colors: {
  custom: {
    50: '#8576dd',
    500: '#3b40cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b40cc;
$custom-light: #8576dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3b40cc",
  "rgb": {
    "r": 59,
    "g": 64,
    "b": 204
  },
  "hsl": {
    "h": 237.931,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.4655,
    "c": 0.21057,
    "h": 273.1
  },
  "luminance": 0.08956
}

Semantic roles & 50–950 ramp

primary

#3B40CC

secondary

#D1CF92

accent

#DD46E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3B40CC

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

Preview Lab → · Contrast checker → · Palette generator →