#1F1BBA

#1F1BBA

Color Values

HEX

#1F1BBA

RGB

31, 27, 186

HSL

241.5, 74.6%, 41.8%

HSV

241.5, 85.5%, 72.9%

CMYK

83.3%, 85.5%, 0.0%, 27.1%

OKLCH

0.3832 0.2292 269.3

Properties

Cool Dark Nearest: darkblue

Color Harmonies

Complementary

#1F1BBA

#B6BA1B

Analogous

#1B67BA

#6F1BBA

#1F1BBA

Triadic

#1F1BBA

#BA1F1B

#1BBA1F

Split Complementary

#1F1BBA

#BA6F1B

#67BA1B

Tetradic

#1F1BBA

#BA1B67

#B6BA1B

#1BBA6F

Color Blindness Simulation

Original

#1F1BBA

Protanopia

#1D1D94

Deuteranopia

#1E1E8A

Tritanopia

#1F756E

Achromatopsia

#272727

CSS Usage

background-color: #1F1BBA;
color: #1F1BBA;
border-color: #1F1BBA;
Nearest Tailwind: Indigo 700 #4338CA

Tailwind Shades

50
#F3F2FC
100
#E2E2F8
200
#C2C1F6
300
#9694EF
400
#5E5AE7
500
#2520DF
600
#1E1AB2
700
#18158E
800
#13106F
900
#121051
950
#0B0A33

Contrast Checker

Text on white

10.91:1

AA Pass AAA Pass

Text on black

1.92:1

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