#3D40BC#3D40BC

#3D40BC is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.2% C 0.190 H 274.7°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#3D40BC
RGB	rgb(61, 64, 188)
HSL	hsl(239, 51%, 49%)
HSV	hsv(239, 68%, 74%)
CMYK	cmyk(67.6%, 66%, 0%, 26.3%)
CIE-LAB	lab(34.58, 38.50, -65.53)
CIE-LCH	lch(34.58, 76.00, 300.43°)
OKLab	oklab(45.18% 0.0155 -0.1892)
OKLCH	oklch(45.18% 0.19 274.7)
XYZ	xyz(12.8320, 8.2886, 48.4908)
Luminance	0.0829 (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

#3D40BC #BCB93D

analogous

#3D80BC #3D40BC #7A3DBC

triadic

#3D40BC #BC3D40 #40BC3D

tetradic

#3D40BC #BC3D80 #BCB93D #3DBC7A

square

#3D40BC #BC3D80 #BCB93D #3DBC7A

split-complementary

#3D40BC #BC7A3D #80BC3D

monochromatic

#1F2160 #2E308E #3D40BC #686BCE #9698DD

Accessibility & contrast

On white

7.90

#3D40BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3D40BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D40BC

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D40BC	#FFFFFF	#000000	##FFFFFF
##3D40BC	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C0

Deuteranopia (green-blind)

#004CBA

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3d40bc;
/* rgb */ color: rgb(61, 64, 188);
/* oklch */ color: oklch(45.2% 0.190 274.7);

Tailwind

colors: {
  custom: {
    50: '#8375d1',
    500: '#3d40bc',
    950: '#000000',
  },
}

SCSS

$custom: #3d40bc;
$custom-light: #8375d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3d40bc",
  "rgb": {
    "r": 61,
    "g": 64,
    "b": 188
  },
  "hsl": {
    "h": 238.583,
    "s": 51.004,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45185,
    "c": 0.18981,
    "h": 274.7
  },
  "luminance": 0.0829
}

Semantic roles & 50–950 ramp

primary

#3D40BC

secondary

#C9C78C

accent

#D74DDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3D40BC

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

Preview Lab → · Contrast checker → · Palette generator →