#3D40BF#3D40BF

#3D40BF is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.5% C 0.194 H 274.5°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#3D40BF
RGB	rgb(61, 64, 191)
HSL	hsl(239, 52%, 49%)
HSV	hsv(239, 68%, 75%)
CMYK	cmyk(68.1%, 66.5%, 0%, 25.1%)
CIE-LAB	lab(34.84, 39.52, -66.86)
CIE-LCH	lch(34.84, 77.66, 300.58°)
OKLab	oklab(45.46% 0.0152 -0.1931)
OKLCH	oklch(45.46% 0.194 274.5)
XYZ	xyz(13.1587, 8.4193, 50.2117)
Luminance	0.0842 (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

#3D40BF #BFBC3D

analogous

#3D81BF #3D40BF #7B3DBF

triadic

#3D40BF #BF3D40 #40BF3D

tetradic

#3D40BF #BF3D81 #BFBC3D #3DBF7B

square

#3D40BF #BF3D81 #BFBC3D #3DBF7B

split-complementary

#3D40BF #BF7B3D #81BF3D

monochromatic

#1F2162 #2E3091 #3D40BF #6A6CCF #989ADE

Accessibility & contrast

On white

7.82

#3D40BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#3D40BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D40BF

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D40BF	#FFFFFF	#000000	##FFFFFF
##3D40BF	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C3

Deuteranopia (green-blind)

#004CBD

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3d40bf;
/* rgb */ color: rgb(61, 64, 191);
/* oklch */ color: oklch(45.5% 0.194 274.5);

Tailwind

colors: {
  custom: {
    50: '#8375d3',
    500: '#3d40bf',
    950: '#000000',
  },
}

SCSS

$custom: #3d40bf;
$custom-light: #8375d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3d40bf",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 191
  },
  "hsl": {
    "h": 238.615,
    "s": 51.587,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45458,
    "c": 0.19367,
    "h": 274.5
  },
  "luminance": 0.0842
}

Semantic roles & 50–950 ramp

primary

#3D40BF

secondary

#CAC98E

accent

#D84DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3D40BF

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

Preview Lab → · Contrast checker → · Palette generator →