#283D64

#283D64

Color Values

HEX

#283D64

RGB

40, 61, 100

HSL

219.0, 42.9%, 27.5%

HSV

219.0, 60.0%, 39.2%

CMYK

60.0%, 39.0%, 0.0%, 60.8%

OKLCH

0.3626 0.0729 261.9

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#283D64

#644F28

Analogous

#285B64

#312864

#283D64

Triadic

#283D64

#64283D

#3D6428

Split Complementary

#283D64

#643128

#5B6428

Tetradic

#283D64

#64285B

#644F28

#286431

Color Blindness Simulation

Original

#283D64

Protanopia

#31315B

Deuteranopia

#302E58

Tritanopia

#295351

Achromatopsia

#3B3B3B

CSS Usage

background-color: #283D64;
color: #283D64;
border-color: #283D64;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F5F7FA
100
#E7EBF4
200
#CCD7EB
300
#A8BADC
400
#7895C9
500
#496FB6
600
#3A5992
700
#2F4775
800
#24385B
900
#1E2B43
950
#131B2A

Contrast Checker

Text on white

10.82:1

AA Pass AAA Pass

Text on black

1.94:1

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