#283F45

#283F45

Color Values

HEX

#283F45

RGB

40, 63, 69

HSL

192,4, 26,6%, 21,4%

HSV

192,4, 42,0%, 27,1%

CMYK

42,0%, 8,7%, 0,0%, 72,9%

OKLCH

0,3512 0,0305 215,9

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#283F45

#452E28

Analogous

#28453D

#283145

#283F45

Triadic

#283F45

#45283F

#3F4528

Split Complementary

#283F45

#452831

#453D28

Tetradic

#283F45

#3D2845

#452E28

#314528

Color Blindness Simulation

Original

#283F45

Protanopia

#323244

Deuteranopia

#312F43

Tritanopia

#294242

Achromatopsia

#3B3B3B

CSS Usage

background-color: #283F45;
color: #283F45;
border-color: #283F45;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F8F9
100
#E9F0F1
200
#D2E1E5
300
#B2CBD2
400
#88AFBA
500
#5E93A1
600
#4B7681
700
#3C5E67
800
#2F4A51
900
#25373C
950
#172326

Contrast Checker

Text on white

11,13:1

AA Pass AAA Pass

Text on black

1,89:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026