#3D40BA#3D40BA

#3D40BA is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.0% C 0.187 H 274.8°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3D40BA
RGB	rgb(61, 64, 186)
HSL	hsl(239, 51%, 48%)
HSV	hsv(239, 67%, 73%)
CMYK	cmyk(67.2%, 65.6%, 0%, 27.1%)
CIE-LAB	lab(34.40, 37.82, -64.64)
CIE-LCH	lch(34.40, 74.89, 300.33°)
OKLab	oklab(45% 0.0157 -0.1866)
OKLCH	oklch(45% 0.187 274.8)
XYZ	xyz(12.6179, 8.2029, 47.3632)
Luminance	0.0820 (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

#3D40BA #BAB73D

analogous

#3D7EBA #3D40BA #783DBA

triadic

#3D40BA #BA3D40 #40BA3D

tetradic

#3D40BA #BA3D7E #BAB73D #3DBA78

square

#3D40BA #BA3D7E #BAB73D #3DBA78

split-complementary

#3D40BA #BA783D #7EBA3D

monochromatic

#1F205E #2E308C #3D40BA #6769CD #9597DC

Accessibility & contrast

On white

7.95

#3D40BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3D40BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D40BA

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D40BA	#FFFFFF	#000000	##FFFFFF
##3D40BA	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BE

Deuteranopia (green-blind)

#004BB8

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3d40ba;
/* rgb */ color: rgb(61, 64, 186);
/* oklch */ color: oklch(45.0% 0.187 274.8);

Tailwind

colors: {
  custom: {
    50: '#8275d0',
    500: '#3d40ba',
    950: '#000000',
  },
}

SCSS

$custom: #3d40ba;
$custom-light: #8275d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d40ba",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 186
  },
  "hsl": {
    "h": 238.56,
    "s": 50.607,
    "l": 48.431
  },
  "oklch": {
    "l": 0.45004,
    "c": 0.18722,
    "h": 274.8
  },
  "luminance": 0.08204
}

Semantic roles & 50–950 ramp

primary

#3D40BA

secondary

#C8C68B

accent

#D74EDA

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3D40BA

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

Preview Lab → · Contrast checker → · Palette generator →