#3D51C4#3D51C4

#3D51C4 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.9% C 0.180 H 270.7°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#3D51C4
RGB	rgb(61, 81, 196)
HSL	hsl(231, 53%, 50%)
HSV	hsv(231, 69%, 77%)
CMYK	cmyk(68.9%, 58.7%, 0%, 23.1%)
CIE-LAB	lab(39.35, 30.60, -62.42)
CIE-LCH	lch(39.35, 69.52, 296.12°)
OKLab	oklab(48.9% 0.0023 -0.1799)
OKLCH	oklch(48.9% 0.18 270.7)
XYZ	xyz(14.8273, 10.8610, 53.5288)
Luminance	0.1086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D51C4 #C4B03D

analogous

#3D95C4 #3D51C4 #6C3DC4

triadic

#3D51C4 #C43D51 #51C43D

tetradic

#3D51C4 #C43D95 #C4B03D #3DC46C

square

#3D51C4 #C43D95 #C4B03D #3DC46C

split-complementary

#3D51C4 #C46C3D #95C43D

monochromatic

#1F2A67 #2E3D96 #3D51C4 #6C7BD2 #9BA5E1

Accessibility & contrast

On white

6.62

#3D51C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3D51C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D51C4

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D51C4	#FFFFFF	#000000	##FFFFFF
##3D51C4	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C8

Deuteranopia (green-blind)

#0057C2

Tritanopia (blue-blind)

#006D82

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3d51c4;
/* rgb */ color: rgb(61, 81, 196);
/* oklch */ color: oklch(48.9% 0.180 270.7);

Tailwind

colors: {
  custom: {
    50: '#8381d7',
    500: '#3d51c4',
    950: '#000000',
  },
}

SCSS

$custom: #3d51c4;
$custom-light: #8381d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3d51c4",
  "rgb": {
    "r": 61,
    "g": 81,
    "b": 196
  },
  "hsl": {
    "h": 231.111,
    "s": 53.36,
    "l": 50.392
  },
  "oklch": {
    "l": 0.48899,
    "c": 0.17994,
    "h": 270.7
  },
  "luminance": 0.10862
}

Semantic roles & 50–950 ramp

primary

#3D51C4

secondary

#CDC490

accent

#C74BDD

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3D51C4

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

Preview Lab → · Contrast checker → · Palette generator →