#64311C

#64311C

Color Values

HEX

#64311C

RGB

100, 49, 28

HSL

17.5, 56.2%, 25.1%

HSV

17.5, 72.0%, 39.2%

CMYK

0.0%, 51.0%, 72.0%, 60.8%

OKLCH

0.3761 0.0805 42.3

Properties

Warm Dark Nearest: RAL 8002 Signal Brown

Color Harmonies

Complementary

#64311C

#1C4F64

Analogous

#641C2B

#64551C

#64311C

Triadic

#64311C

#1C6431

#311C64

Split Complementary

#64311C

#1C6455

#1C2B64

Tetradic

#64311C

#2B641C

#1C4F64

#551C64

Color Blindness Simulation

Original

#64311C

Protanopia

#4E4D21

Deuteranopia

#515522

Tritanopia

#612526

Achromatopsia

#3A3A3A

CSS Usage

background-color: #64311C;
color: #64311C;
border-color: #64311C;
Nearest Tailwind: Amber 950 #451A03

Tailwind Shades

50
#FBF6F4
100
#F6EAE5
200
#EFD3C7
300
#E4B39F
400
#D68B6C
500
#C76238
600
#9F4E2D
700
#7F3E24
800
#64311C
900
#492618
950
#2E180F

Contrast Checker

Text on white

10.51:1

AA Pass AAA Pass

Text on black

2.0:1

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