#212037

#212037

Color Values

HEX

#212037

RGB

33, 32, 55

HSL

242.6, 26.4%, 17.1%

HSV

242.6, 41.8%, 21.6%

CMYK

40.0%, 41.8%, 0.0%, 78.4%

OKLCH

0.2564 0.0428 284.9

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#212037

#363720

Analogous

#202B37

#2D2037

#212037

Triadic

#212037

#372120

#203721

Split Complementary

#212037

#372D20

#2B3720

Tetradic

#212037

#37202B

#363720

#20372D

Color Blindness Simulation

Original

#212037

Protanopia

#212131

Deuteranopia

#212130

Tritanopia

#212D2C

Achromatopsia

#222222

CSS Usage

background-color: #212037;
color: #212037;
border-color: #212037;
Nearest Tailwind: Slate 900 #0F172A

Tailwind Shades

50
#F6F6F9
100
#E9E9F1
200
#D3D2E5
300
#B3B2D2
400
#8A88BA
500
#615EA1
600
#4D4B81
700
#3E3C67
800
#302F51
900
#26253C
950
#181726

Contrast Checker

Text on white

15.83:1

AA Pass AAA Pass

Text on black

1.33:1

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