#1F313D

#1F313D

Color Values

HEX

#1F313D

RGB

31, 49, 61

HSL

204,0, 32,6%, 18,0%

HSV

204,0, 49,2%, 23,9%

CMYK

49,2%, 19,7%, 0,0%, 76,1%

OKLCH

0,3031 0,0321 238,4

Properties

Cool Dark Nearest: RAL 5001 Green Blue

Color Harmonies

Complementary

#1F313D

#3D2B1F

Analogous

#1F3D3A

#1F223D

#1F313D

Triadic

#1F313D

#3D1F31

#313D1F

Split Complementary

#1F313D

#3D1F22

#3D3A1F

Tetradic

#1F313D

#3A1F3D

#3D2B1F

#223D1F

Color Blindness Simulation

Original

#1F313D

Protanopia

#27273A

Deuteranopia

#262439

Tritanopia

#203837

Achromatopsia

#2E2E2E

CSS Usage

background-color: #1F313D;
color: #1F313D;
border-color: #1F313D;
Nearest Tailwind: Gray 800 #1F2937

Tailwind Shades

50
#F5F8F9
100
#E8EEF2
200
#D0DEE7
300
#AEC6D6
400
#82A7BF
500
#5688A9
600
#456D87
700
#37576C
800
#2B4455
900
#22333F
950
#162028

Contrast Checker

Text on white

13,42:1

AA Pass AAA Pass

Text on black

1,56:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

يناير 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

يناير 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

يناير 15, 2026