#3D37BA#3D37BA

#3D37BA is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.6% C 0.197 H 276.4°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#3D37BA
RGB	rgb(61, 55, 186)
HSL	hsl(243, 54%, 47%)
HSV	hsv(243, 70%, 73%)
CMYK	cmyk(67.2%, 70.4%, 0%, 27.1%)
CIE-LAB	lab(32.41, 43.21, -67.91)
CIE-LCH	lch(32.41, 80.49, 302.47°)
OKLab	oklab(43.57% 0.022 -0.1961)
OKLCH	oklch(43.57% 0.197 276.4)
XYZ	xyz(12.1507, 7.2686, 47.2075)
Luminance	0.0727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.58

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D37BA #B4BA37

analogous

#3773BA #3D37BA #7F37BA

triadic

#3D37BA #BA3D37 #37BA3D

tetradic

#3D37BA #BA3773 #B4BA37 #37BA7F

square

#3D37BA #BA3773 #B4BA37 #37BA7F

split-complementary

#3D37BA #BA7F37 #73BA37

monochromatic

#1E1B5C #2E298B #3D37BA #645FD0 #928EDE

Accessibility & contrast

On white

8.56

#3D37BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3D37BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D37BA

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D37BA	#FFFFFF	#000000	##FFFFFF
##3D37BA	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BE

Deuteranopia (green-blind)

#0046B8

Tritanopia (blue-blind)

#005B74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3d37ba;
/* rgb */ color: rgb(61, 55, 186);
/* oklch */ color: oklch(43.6% 0.197 276.4);

Tailwind

colors: {
  custom: {
    50: '#836fd0',
    500: '#3d37ba',
    950: '#000000',
  },
}

SCSS

$custom: #3d37ba;
$custom-light: #836fd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3d37ba",
  "rgb": {
    "r": 61,
    "g": 55,
    "b": 186
  },
  "hsl": {
    "h": 242.748,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.43565,
    "c": 0.19736,
    "h": 276.4
  },
  "luminance": 0.0727
}

Semantic roles & 50–950 ramp

primary

#3D37BA

secondary

#C5C885

accent

#DE4AD7

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #3D37BA

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

Preview Lab → · Contrast checker → · Palette generator →