#381D57

#381D57

Color Values

HEX

#381D57

RGB

56, 29, 87

HSL

267.9, 50.0%, 22.7%

HSV

267.9, 66.7%, 34.1%

CMYK

35.6%, 66.7%, 0.0%, 65.9%

OKLCH

0.3001 0.1013 302.1

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#381D57

#3C571D

Analogous

#1D1F57

#551D57

#381D57

Triadic

#381D57

#57381D

#1D5738

Split Complementary

#381D57

#57551D

#1F571D

Tetradic

#381D57

#571D1F

#3C571D

#1D5755

Color Blindness Simulation

Original

#381D57

Protanopia

#2C2C49

Deuteranopia

#2E3046

Tritanopia

#373E3B

Achromatopsia

#272727

CSS Usage

background-color: #381D57;
color: #381D57;
border-color: #381D57;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F4FB
100
#EDE6F5
200
#DAC9ED
300
#C0A3E0
400
#9D71D0
500
#7B40BF
600
#623399
700
#4F297A
800
#3E2060
900
#2F1B46
950
#1E112C

Contrast Checker

Text on white

14.17:1

AA Pass AAA Pass

Text on black

1.48:1

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