#172B21

#172B21

Color Values

HEX

#172B21

RGB

23, 43, 33

HSL

150.0, 30.3%, 12.9%

HSV

150.0, 46.5%, 16.9%

CMYK

46.5%, 0.0%, 23.3%, 83.1%

OKLCH

0.2684 0.0323 161.4

Properties

Cool Dark Nearest: RAL 6009 Fir Green

Color Harmonies

Complementary

#172B21

#2B1721

Analogous

#172B17

#172B2B

#172B21

Triadic

#172B21

#21172B

#2B2117

Split Complementary

#172B21

#2B172B

#2B1717

Tetradic

#172B21

#17172B

#2B1721

#2B2B17

Color Blindness Simulation

Original

#172B21

Protanopia

#202023

Deuteranopia

#1E1D24

Tritanopia

#182526

Achromatopsia

#262626

CSS Usage

background-color: #172B21;
color: #172B21;
border-color: #172B21;
Nearest Tailwind: Emerald 950 #022C22

Tailwind Shades

50
#F5F9F7
100
#E9F2ED
200
#D0E6DB
300
#AFD4C2
400
#84BDA1
500
#59A680
600
#478566
700
#396A52
800
#2C5340
900
#233E30
950
#16271F

Contrast Checker

Text on white

14.96:1

AA Pass AAA Pass

Text on black

1.4:1

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