#371843

#371843

Color Values

HEX

#371843

RGB

55, 24, 67

HSL

283.3, 47.3%, 17.8%

HSV

283.3, 64.2%, 26.3%

CMYK

17.9%, 64.2%, 0.0%, 73.7%

OKLCH

0.2755 0.0835 315.6

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#371843

#244318

Analogous

#211843

#431839

#371843

Triadic

#371843

#433718

#184337

Split Complementary

#371843

#394318

#184321

Tetradic

#371843

#432118

#244318

#183943

Color Blindness Simulation

Original

#371843

Protanopia

#2A2939

Deuteranopia

#2B2E36

Tritanopia

#35302F

Achromatopsia

#222222

CSS Usage

background-color: #371843;
color: #371843;
border-color: #371843;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F9F4FA
100
#F0E6F4
200
#E3CAEC
300
#CFA5DF
400
#B474CD
500
#9A43BC
600
#7B3696
700
#632B78
800
#4D225E
900
#3A1C45
950
#24122C

Contrast Checker

Text on white

15.28:1

AA Pass AAA Pass

Text on black

1.37:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026