#3D51BE#3D51BE

#3D51BE is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.4% C 0.172 H 270.7°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#3D51BE
RGB	rgb(61, 81, 190)
HSL	hsl(231, 51%, 49%)
HSV	hsv(231, 68%, 75%)
CMYK	cmyk(67.9%, 57.4%, 0%, 25.5%)
CIE-LAB	lab(38.89, 28.47, -59.67)
CIE-LCH	lch(38.89, 66.11, 295.50°)
OKLab	oklab(48.41% 0.0022 -0.1718)
OKLCH	oklch(48.41% 0.172 270.7)
XYZ	xyz(14.1580, 10.5933, 50.0038)
Luminance	0.1060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D51BE #BEAA3D

analogous

#3D92BE #3D51BE #6A3DBE

triadic

#3D51BE #BE3D51 #51BE3D

tetradic

#3D51BE #BE3D92 #BEAA3D #3DBE6A

square

#3D51BE #BE3D92 #BEAA3D #3DBE6A

split-complementary

#3D51BE #BE6A3D #92BE3D

monochromatic

#1F2A61 #2E3D90 #3D51BE #6979CF #98A2DE

Accessibility & contrast

On white

6.73

#3D51BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3D51BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D51BE

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D51BE	#FFFFFF	#000000	##FFFFFF
##3D51BE	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C2

Deuteranopia (green-blind)

#0056BC

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3d51be;
/* rgb */ color: rgb(61, 81, 190);
/* oklch */ color: oklch(48.4% 0.172 270.7);

Tailwind

colors: {
  custom: {
    50: '#8281d2',
    500: '#3d51be',
    950: '#000000',
  },
}

SCSS

$custom: #3d51be;
$custom-light: #8281d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3d51be",
  "rgb": {
    "r": 61,
    "g": 81,
    "b": 190
  },
  "hsl": {
    "h": 230.698,
    "s": 51.394,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48413,
    "c": 0.17184,
    "h": 270.7
  },
  "luminance": 0.10595
}

Semantic roles & 50–950 ramp

primary

#3D51BE

secondary

#C9C08D

accent

#C54DDB

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #3D51BE

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

Preview Lab → · Contrast checker → · Palette generator →