#331D3E

#331D3E

Color Values

HEX

#331D3E

RGB

51, 29, 62

HSL

280,0, 36,3%, 17,8%

HSV

280,0, 53,2%, 24,3%

CMYK

17,7%, 53,2%, 0,0%, 75,7%

OKLCH

0,2756 0,0649 313,5

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#331D3E

#283E1D

Analogous

#221D3E

#3E1D38

#331D3E

Triadic

#331D3E

#3E331D

#1D3E33

Split Complementary

#331D3E

#383E1D

#1D3E22

Tetradic

#331D3E

#3E221D

#283E1D

#1D383E

Color Blindness Simulation

Original

#331D3E

Protanopia

#292936

Deuteranopia

#2B2C34

Tritanopia

#32302E

Achromatopsia

#242424

CSS Usage

background-color: #331D3E;
color: #331D3E;
border-color: #331D3E;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F5FA
100
#EFE8F3
200
#E0CEE8
300
#C9ACD8
400
#AC7EC3
500
#8F51AE
600
#72418B
700
#5B346F
800
#472957
900
#362140
950
#221529

Contrast Checker

Text on white

15,15:1

AA Pass AAA Pass

Text on black

1,39:1

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