#640F17

#640F17

Color Values

HEX

#640F17

RGB

100, 15, 23

HSL

354.4, 73.9%, 22.5%

HSV

354.4, 85.0%, 39.2%

CMYK

0.0%, 85.0%, 77.0%, 60.8%

OKLCH

0.329 0.1171 22.2

Properties

Warm Dark Nearest: RAL 3032 Pearl Ruby Red

Color Harmonies

Complementary

#640F17

#0F645C

Analogous

#640F41

#64310F

#640F17

Triadic

#640F17

#17640F

#0F1764

Split Complementary

#640F17

#0F6431

#0F4164

Tetradic

#640F17

#41640F

#0F645C

#310F64

Color Blindness Simulation

Original

#640F17

Protanopia

#3F3E15

Deuteranopia

#444A15

Tritanopia

#601413

Achromatopsia

#222222

CSS Usage

background-color: #640F17;
color: #640F17;
border-color: #640F17;
Nearest Tailwind: Red 900 #7F1D1D

Tailwind Shades

50
#FCF3F3
100
#F8E2E4
200
#F6C1C6
300
#EF959D
400
#E65B68
500
#DE2133
600
#B11B29
700
#8E1521
800
#6F1119
900
#511016
950
#330A0E

Contrast Checker

Text on white

12.94:1

AA Pass AAA Pass

Text on black

1.62:1

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