#151F8F

#151F8F

Color Values

HEX

#151F8F

RGB

21, 31, 143

HSL

235.1, 74.4%, 32.2%

HSV

235.1, 85.3%, 56.1%

CMYK

85.3%, 78.3%, 0.0%, 43.9%

OKLCH

0.3312 0.1784 268.4

Properties

Cool Dark Nearest: navy

Color Harmonies

Complementary

#151F8F

#8F8515

Analogous

#155C8F

#48158F

#151F8F

Triadic

#151F8F

#8F151F

#1F8F15

Split Complementary

#151F8F

#8F4815

#5C8F15

Tetradic

#151F8F

#8F155C

#8F8515

#158F48

Color Blindness Simulation

Original

#151F8F

Protanopia

#191974

Deuteranopia

#19186D

Tritanopia

#165E5A

Achromatopsia

#252525

CSS Usage

background-color: #151F8F;
color: #151F8F;
border-color: #151F8F;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F3FC
100
#E2E4F8
200
#C1C5F6
300
#949CEF
400
#5A66E7
500
#2130DE
600
#1A27B2
700
#151F8E
800
#10186F
900
#101551
950
#0A0D33

Contrast Checker

Text on white

12.93:1

AA Pass AAA Pass

Text on black

1.62:1

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