#290B2B

#290B2B

Color Values

HEX

#290B2B

RGB

41, 11, 43

HSL

296.2, 59.3%, 10.6%

HSV

296.2, 74.4%, 16.9%

CMYK

4.7%, 74.4%, 0.0%, 83.1%

OKLCH

0.2158 0.0704 325.1

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#290B2B

#0D2B0B

Analogous

#190B2B

#2B0B1D

#290B2B

Triadic

#290B2B

#2B290B

#0B2B29

Split Complementary

#290B2B

#1D2B0B

#0B2B19

Tetradic

#290B2B

#2B190B

#0D2B0B

#0B1D2B

Color Blindness Simulation

Original

#290B2B

Protanopia

#1C1C23

Deuteranopia

#1E2021

Tritanopia

#271D1C

Achromatopsia

#141414

CSS Usage

background-color: #290B2B;
color: #290B2B;
border-color: #290B2B;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#FBF3FB
100
#F5E4F6
200
#EEC6F0
300
#E19EE6
400
#D269D9
500
#C234CB
600
#9B2AA2
700
#7C2182
800
#611A66
900
#47174A
950
#2D0E2F

Contrast Checker

Text on white

17.84:1

AA Pass AAA Pass

Text on black

1.18:1

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