#302F40

#302F40

Color Values

HEX

#302F40

RGB

48, 47, 64

HSL

243.5, 15.3%, 21.8%

HSV

243.5, 26.6%, 25.1%

CMYK

25.0%, 26.6%, 0.0%, 74.9%

OKLCH

0.3136 0.0302 287.2

Properties

Cool Dark Nearest: RAL 5008 Grey Blue

Color Harmonies

Complementary

#302F40

#3F402F

Analogous

#2F3740

#392F40

#302F40

Triadic

#302F40

#40302F

#2F4030

Split Complementary

#302F40

#40392F

#37402F

Tetradic

#302F40

#402F37

#3F402F

#2F4039

Color Blindness Simulation

Original

#302F40

Protanopia

#30303C

Deuteranopia

#30303B

Tritanopia

#303938

Achromatopsia

#303030

CSS Usage

background-color: #302F40;
color: #302F40;
border-color: #302F40;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F6F6F8
100
#EBEBEF
200
#D6D6E1
300
#BAB8CB
400
#9492AF
500
#6E6C93
600
#585676
700
#47455E
800
#37364A
900
#2B2A37
950
#1B1A23

Contrast Checker

Text on white

13.07:1

AA Pass AAA Pass

Text on black

1.61:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026