#311049

#311049

Color Values

HEX

#311049

RGB

49, 16, 73

HSL

274.7, 64.0%, 17.5%

HSV

274.7, 78.1%, 28.6%

CMYK

32.9%, 78.1%, 0.0%, 71.4%

OKLCH

0.2594 0.1018 307.1

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#311049

#284910

Analogous

#151049

#491045

#311049

Triadic

#311049

#493110

#104931

Split Complementary

#311049

#454910

#104915

Tetradic

#311049

#491510

#284910

#104549

Color Blindness Simulation

Original

#311049

Protanopia

#23223B

Deuteranopia

#252738

Tritanopia

#2F302E

Achromatopsia

#1B1B1B

CSS Usage

background-color: #311049;
color: #311049;
border-color: #311049;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F8F3FC
100
#EFE3F7
200
#DFC4F2
300
#C89BE9
400
#AA64DD
500
#8C2ED1
600
#7025A7
700
#5A1D86
800
#461769
900
#35154C
950
#210D30

Contrast Checker

Text on white

16.14:1

AA Pass AAA Pass

Text on black

1.3:1

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