#283D43

#283D43

Color Values

HEX

#283D43

RGB

40, 61, 67

HSL

193.3, 25.2%, 21.0%

HSV

193.3, 40.3%, 26.3%

CMYK

40.3%, 9.0%, 0.0%, 73.7%

OKLCH

0.3449 0.0285 217.5

Properties

Cool Dark Nearest: RAL 6004 Blue Green

Color Harmonies

Complementary

#283D43

#432E28

Analogous

#28433C

#283043

#283D43

Triadic

#283D43

#43283D

#3D4328

Split Complementary

#283D43

#432830

#433C28

Tetradic

#283D43

#3C2843

#432E28

#304328

Color Blindness Simulation

Original

#283D43

Protanopia

#313142

Deuteranopia

#302E41

Tritanopia

#294040

Achromatopsia

#393939

CSS Usage

background-color: #283D43;
color: #283D43;
border-color: #283D43;
Nearest Tailwind: Gray 700 #374151

Tailwind Shades

50
#F6F8F9
100
#E9EFF1
200
#D2E0E4
300
#B2CAD1
400
#89AEB8
500
#5F91A0
600
#4C7480
700
#3D5D66
800
#304950
900
#25373B
950
#182226

Contrast Checker

Text on white

11.42:1

AA Pass AAA Pass

Text on black

1.84:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026