#231F41

#231F41

Color Values

HEX

#231F41

RGB

35, 31, 65

HSL

247.1, 35.4%, 18.8%

HSV

247.1, 52.3%, 25.5%

CMYK

46.2%, 52.3%, 0.0%, 74.5%

OKLCH

0.2629 0.0621 286.7

Properties

Cool Dark Nearest: RAL 5013 Cobalt Blue

Color Harmonies

Complementary

#231F41

#3D411F

Analogous

#1F2C41

#341F41

#231F41

Triadic

#231F41

#41231F

#1F4123

Split Complementary

#231F41

#41341F

#2C411F

Tetradic

#231F41

#411F2C

#3D411F

#1F4134

Color Blindness Simulation

Original

#231F41

Protanopia

#212139

Deuteranopia

#222237

Tritanopia

#233231

Achromatopsia

#222222

CSS Usage

background-color: #231F41;
color: #231F41;
border-color: #231F41;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F6F5FA
100
#E9E8F3
200
#D2CFE8
300
#B1ACD7
400
#877FC2
500
#5D52AD
600
#4A428A
700
#3C356E
800
#2F2956
900
#252140
950
#171528

Contrast Checker

Text on white

15.63:1

AA Pass AAA Pass

Text on black

1.34:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026