#1F2374

#1F2374

Color Values

HEX

#1F2374

RGB

31, 35, 116

HSL

237.2, 57.8%, 28.8%

HSV

237.2, 73.3%, 45.5%

CMYK

73.3%, 69.8%, 0.0%, 54.5%

OKLCH

0.3132 0.1358 273.3

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#1F2374

#74701F

Analogous

#1F4D74

#451F74

#1F2374

Triadic

#1F2374

#741F23

#23741F

Split Complementary

#1F2374

#74451F

#4D741F

Tetradic

#1F2374

#741F4D

#74701F

#1F7445

Color Blindness Simulation

Original

#1F2374

Protanopia

#212160

Deuteranopia

#20205C

Tritanopia

#1F514E

Achromatopsia

#282828

CSS Usage

background-color: #1F2374;
color: #1F2374;
border-color: #1F2374;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FB
100
#E4E5F6
200
#C7C9F0
300
#9EA2E5
400
#6A6FD7
500
#363DC9
600
#2B31A1
700
#222781
800
#1B1E65
900
#171A4A
950
#0F102F

Contrast Checker

Text on white

13.54:1

AA Pass AAA Pass

Text on black

1.55:1

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