#3D51C8#3D51C8

#3D51C8 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 49.2% C 0.185 H 270.7°. Best body text is #FFFFFF at 6.54:1 contrast (WCAG AA passes).

Color values

HEX	#3D51C8
RGB	rgb(61, 81, 200)
HSL	hsl(231, 56%, 51%)
HSV	hsv(231, 70%, 78%)
CMYK	cmyk(69.5%, 59.5%, 0%, 21.6%)
CIE-LAB	lab(39.66, 32.02, -64.24)
CIE-LCH	lch(39.66, 71.78, 296.50°)
OKLab	oklab(49.23% 0.0023 -0.1853)
OKLCH	oklch(49.23% 0.185 270.7)
XYZ	xyz(15.2887, 11.0456, 55.9587)
Luminance	0.1105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D51C8 #C8B43D

analogous

#3D96C8 #3D51C8 #6E3DC8

triadic

#3D51C8 #C83D51 #51C83D

tetradic

#3D51C8 #C83D96 #C8B43D #3DC86E

square

#3D51C8 #C83D96 #C8B43D #3DC86E

split-complementary

#3D51C8 #C86E3D #96C83D

monochromatic

#1F2A6C #2C3C9C #3D51C8 #6D7CD6 #9CA7E3

Accessibility & contrast

On white

6.54

#3D51C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3D51C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D51C8

6.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D51C8	#FFFFFF	#000000	##FFFFFF
##3D51C8	1.00	6.54	3.21	6.54
#FFFFFF	6.54	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064CC

Deuteranopia (green-blind)

#0057C6

Tritanopia (blue-blind)

#006F84

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3d51c8;
/* rgb */ color: rgb(61, 81, 200);
/* oklch */ color: oklch(49.2% 0.185 270.7);

Tailwind

colors: {
  custom: {
    50: '#8481da',
    500: '#3d51c8',
    950: '#000000',
  },
}

SCSS

$custom: #3d51c8;
$custom-light: #8481da;
$custom-dark: #000000;

JSON

{
  "hex": "#3d51c8",
  "rgb": {
    "r": 61,
    "g": 81,
    "b": 200
  },
  "hsl": {
    "h": 231.367,
    "s": 55.823,
    "l": 51.176
  },
  "oklch": {
    "l": 0.49228,
    "c": 0.18527,
    "h": 270.7
  },
  "luminance": 0.11047
}

Semantic roles & 50–950 ramp

primary

#3D51C8

secondary

#CFC692

accent

#C949DF

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3D51C8

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

Preview Lab → · Contrast checker → · Palette generator →