#1F4D74

#1F4D74

Color Values

HEX

#1F4D74

RGB

31, 77, 116

HSL

207.5, 57.8%, 28.8%

HSV

207.5, 73.3%, 45.5%

CMYK

73.3%, 33.6%, 0.0%, 54.5%

OKLCH

0.4081 0.0826 247.2

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#1F4D74

#74461F

Analogous

#1F7470

#1F2374

#1F4D74

Triadic

#1F4D74

#741F4D

#4D741F

Split Complementary

#1F4D74

#741F23

#74701F

Tetradic

#1F4D74

#701F74

#74461F

#23741F

Color Blindness Simulation

Original

#1F4D74

Protanopia

#33336B

Deuteranopia

#302D68

Tritanopia

#216361

Achromatopsia

#464646

CSS Usage

background-color: #1F4D74;
color: #1F4D74;
border-color: #1F4D74;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F4F8FB
100
#E4EEF6
200
#C7DDF0
300
#9EC5E5
400
#6AA5D7
500
#3686C9
600
#2B6BA1
700
#225681
800
#1B4365
900
#17334A
950
#0F202F

Contrast Checker

Text on white

8.85:1

AA Pass AAA Pass

Text on black

2.37:1

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