#1F2145

#1F2145

Color Values

HEX

#1F2145

RGB

31, 33, 69

HSL

236.8, 38.0%, 19.6%

HSV

236.8, 55.1%, 27.1%

CMYK

55.1%, 52.2%, 0.0%, 72.9%

OKLCH

0.2667 0.0661 278.5

Properties

Cool Dark Nearest: RAL 5022 Night Blue

Color Harmonies

Complementary

#1F2145

#45431F

Analogous

#1F3445

#301F45

#1F2145

Triadic

#1F2145

#451F21

#21451F

Split Complementary

#1F2145

#45301F

#34451F

Tetradic

#1F2145

#451F34

#45431F

#1F4530

Color Blindness Simulation

Original

#1F2145

Protanopia

#20203C

Deuteranopia

#20203A

Tritanopia

#1F3534

Achromatopsia

#232323

CSS Usage

background-color: #1F2145;
color: #1F2145;
border-color: #1F2145;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F5FA
100
#E7E8F3
200
#CECFE9
300
#ABADD9
400
#7D81C5
500
#4F54B0
600
#3F438D
700
#333671
800
#282A58
900
#202241
950
#141529

Contrast Checker

Text on white

15.42:1

AA Pass AAA Pass

Text on black

1.36:1

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