#11172D

#11172D

Color Values

HEX

#11172D

RGB

17, 23, 45

HSL

227.1, 45.2%, 12.2%

HSV

227.1, 62.2%, 17.6%

CMYK

62.2%, 48.9%, 0.0%, 82.4%

OKLCH

0.2115 0.0445 270.7

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#11172D

#2D2711

Analogous

#11252D

#19112D

#11172D

Triadic

#11172D

#2D1117

#172D11

Split Complementary

#11172D

#2D1911

#252D11

Tetradic

#11172D

#2D1125

#2D2711

#112D19

Color Blindness Simulation

Original

#11172D

Protanopia

#141428

Deuteranopia

#131326

Tritanopia

#112323

Achromatopsia

#171717

CSS Usage

background-color: #11172D;
color: #11172D;
border-color: #11172D;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F4F6FA
100
#E6E9F4
200
#CBD2EB
300
#A6B2DD
400
#7688CB
500
#465FB9
600
#384C94
700
#2D3D76
800
#232F5D
900
#1D2544
950
#12182B

Contrast Checker

Text on white

17.73:1

AA Pass AAA Pass

Text on black

1.18:1

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