#1B1358

#1B1358

Color Values

HEX

#1B1358

RGB

27, 19, 88

HSL

247.0, 64.5%, 21.0%

HSV

247.0, 78.4%, 34.5%

CMYK

69.3%, 78.4%, 0.0%, 65.5%

OKLCH

0.2529 0.1171 279.2

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#1B1358

#505813

Analogous

#132D58

#3E1358

#1B1358

Triadic

#1B1358

#581B13

#13581B

Split Complementary

#1B1358

#583E13

#2D5813

Tetradic

#1B1358

#58132D

#505813

#13583E

Color Blindness Simulation

Original

#1B1358

Protanopia

#181747

Deuteranopia

#181943

Tritanopia

#1B3A37

Achromatopsia

#1A1A1A

CSS Usage

background-color: #1B1358;
color: #1B1358;
border-color: #1B1358;
Nearest Tailwind: Violet 950 #2E1065

Tailwind Shades

50
#F4F3FC
100
#E6E3F7
200
#CAC4F2
300
#A49AE9
400
#7264DE
500
#402DD2
600
#3424A8
700
#291D86
800
#201769
900
#1B144D
950
#110D30

Contrast Checker

Text on white

16.4:1

AA Pass AAA Pass

Text on black

1.28:1

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