#2B1D3F

#2B1D3F

Color Values

HEX

#2B1D3F

RGB

43, 29, 63

HSL

264.7, 37.0%, 18.0%

HSV

264.7, 54.0%, 24.7%

CMYK

31.7%, 54.0%, 0.0%, 75.3%

OKLCH

0.266 0.0633 301.2

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#2B1D3F

#313F1D

Analogous

#1D203F

#3C1D3F

#2B1D3F

Triadic

#2B1D3F

#3F2B1D

#1D3F2B

Split Complementary

#2B1D3F

#3F3C1D

#203F1D

Tetradic

#2B1D3F

#3F1D20

#313F1D

#1D3F3C

Color Blindness Simulation

Original

#2B1D3F

Protanopia

#252537

Deuteranopia

#262735

Tritanopia

#2A302F

Achromatopsia

#222222

CSS Usage

background-color: #2B1D3F;
color: #2B1D3F;
border-color: #2B1D3F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F5FA
100
#ECE8F3
200
#D9CEE9
300
#BEABD8
400
#9A7EC4
500
#7750AF
600
#5F408C
700
#4C3370
800
#3C2857
900
#2E2041
950
#1D1429

Contrast Checker

Text on white

15.55:1

AA Pass AAA Pass

Text on black

1.35:1

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