#151F4C

#151F4C

Color Values

HEX

#151F4C

RGB

21, 31, 76

HSL

229.1, 56.7%, 19.0%

HSV

229.1, 72.4%, 29.8%

CMYK

72.4%, 59.2%, 0.0%, 70.2%

OKLCH

0.26 0.0841 270.1

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#151F4C

#4C4215

Analogous

#153A4C

#26154C

#151F4C

Triadic

#151F4C

#4C151F

#1F4C15

Split Complementary

#151F4C

#4C2615

#3A4C15

Tetradic

#151F4C

#4C153A

#4C4215

#154C26

Color Blindness Simulation

Original

#151F4C

Protanopia

#191941

Deuteranopia

#19183E

Tritanopia

#163937

Achromatopsia

#202020

CSS Usage

background-color: #151F4C;
color: #151F4C;
border-color: #151F4C;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F4F5FB
100
#E5E8F6
200
#C7CEF0
300
#9FACE5
400
#6B7FD6
500
#3751C8
600
#2C41A0
700
#233480
800
#1C2964
900
#182149
950
#0F152E

Contrast Checker

Text on white

15.76:1

AA Pass AAA Pass

Text on black

1.33:1

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