#312B68

#312B68

Color Values

HEX

#312B68

RGB

49, 43, 104

HSL

245.9, 41.5%, 28.8%

HSV

245.9, 58.7%, 40.8%

CMYK

52.9%, 58.7%, 0.0%, 59.2%

OKLCH

0.3318 0.1031 283.7

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#312B68

#62682B

Analogous

#2B4368

#4F2B68

#312B68

Triadic

#312B68

#68312B

#2B6831

Split Complementary

#312B68

#684F2B

#43682B

Tetradic

#312B68

#682B43

#62682B

#2B684F

Color Blindness Simulation

Original

#312B68

Protanopia

#2E2E59

Deuteranopia

#2F2F56

Tritanopia

#314E4B

Achromatopsia

#313131

CSS Usage

background-color: #312B68;
color: #312B68;
border-color: #312B68;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#CFCCEA
300
#ADA8DB
400
#8179C8
500
#554BB4
600
#443C90
700
#363073
800
#2A255A
900
#221E43
950
#15132A

Contrast Checker

Text on white

12.53:1

AA Pass AAA Pass

Text on black

1.68:1

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