#3D37B5#3D37B5

#3D37B5 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.191 H 276.8°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#3D37B5
RGB	rgb(61, 55, 181)
HSL	hsl(243, 53%, 46%)
HSV	hsv(243, 70%, 71%)
CMYK	cmyk(66.3%, 69.6%, 0%, 29%)
CIE-LAB	lab(31.94, 41.57, -65.71)
CIE-LCH	lch(31.94, 77.76, 302.32°)
OKLab	oklab(43.09% 0.0228 -0.1897)
OKLCH	oklch(43.09% 0.191 276.8)
XYZ	xyz(11.6284, 7.0597, 44.4570)
Luminance	0.0706 (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

#3D37B5 #AFB537

analogous

#3770B5 #3D37B5 #7C37B5

triadic

#3D37B5 #B53D37 #37B53D

tetradic

#3D37B5 #B53770 #AFB537 #37B57C

square

#3D37B5 #B53770 #AFB537 #37B57C

split-complementary

#3D37B5 #B57C37 #70B537

monochromatic

#1D1A57 #2D2986 #3D37B5 #615CCD #8F8BDC

Accessibility & contrast

On white

8.71

#3D37B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3D37B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D37B5

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D37B5	#FFFFFF	#000000	##FFFFFF
##3D37B5	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B9

Deuteranopia (green-blind)

#0046B3

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3d37b5;
/* rgb */ color: rgb(61, 55, 181);
/* oklch */ color: oklch(43.1% 0.191 276.8);

Tailwind

colors: {
  custom: {
    50: '#826fcc',
    500: '#3d37b5',
    950: '#000000',
  },
}

SCSS

$custom: #3d37b5;
$custom-light: #826fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3d37b5",
  "rgb": {
    "r": 61,
    "g": 55,
    "b": 181
  },
  "hsl": {
    "h": 242.857,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43087,
    "c": 0.19108,
    "h": 276.8
  },
  "luminance": 0.07061
}

Semantic roles & 50–950 ramp

primary

#3D37B5

secondary

#C3C682

accent

#DD4BD6

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3D37B5

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

Preview Lab → · Contrast checker → · Palette generator →