#3D40CF#3D40CF

#3D40CF is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 47.0% C 0.214 H 273.6°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#3D40CF
RGB	rgb(61, 64, 207)
HSL	hsl(239, 60%, 53%)
HSV	hsv(239, 71%, 81%)
CMYK	cmyk(70.5%, 69.1%, 0%, 18.8%)
CIE-LAB	lab(36.30, 44.89, -73.80)
CIE-LCH	lch(36.30, 86.38, 301.31°)
OKLab	oklab(46.95% 0.0134 -0.2134)
OKLCH	oklch(46.95% 0.214 273.6)
XYZ	xyz(15.0166, 9.1624, 59.9965)
Luminance	0.0916 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.02

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D40CF #CFCC3D

analogous

#3D89CF #3D40CF #833DCF

triadic

#3D40CF #CF3D40 #40CF3D

tetradic

#3D40CF #CF3D89 #CFCC3D #3DCF83

square

#3D40CF #CF3D89 #CFCC3D #3DCF83

split-complementary

#3D40CF #CF833D #89CF3D

monochromatic

#1D1F75 #292CA6 #3D40CF #6E70DB #9FA1E7

Accessibility & contrast

On white

7.41

#3D40CF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#3D40CF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D40CF

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D40CF	#FFFFFF	#000000	##FFFFFF
##3D40CF	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD3

Deuteranopia (green-blind)

#004ECC

Tritanopia (blue-blind)

#006783

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3d40cf;
/* rgb */ color: rgb(61, 64, 207);
/* oklch */ color: oklch(47.0% 0.214 273.6);

Tailwind

colors: {
  custom: {
    50: '#8776df',
    500: '#3d40cf',
    950: '#000000',
  },
}

SCSS

$custom: #3d40cf;
$custom-light: #8776df;
$custom-dark: #000000;

JSON

{
  "hex": "#3d40cf",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 207
  },
  "hsl": {
    "h": 238.767,
    "s": 60.331,
    "l": 52.549
  },
  "oklch": {
    "l": 0.46953,
    "c": 0.21379,
    "h": 273.6
  },
  "luminance": 0.09164
}

Semantic roles & 50–950 ramp

primary

#3D40CF

secondary

#D4D294

accent

#E044E3

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3D40CF

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

Preview Lab → · Contrast checker → · Palette generator →