#312D80

#312D80

Color Values

HEX

#312D80

RGB

49, 45, 128

HSL

242.9, 48.0%, 33.9%

HSV

242.9, 64.8%, 50.2%

CMYK

61.7%, 64.8%, 0.0%, 49.8%

OKLCH

0.356 0.1353 279.1

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#312D80

#7C802D

Analogous

#2D5280

#5A2D80

#312D80

Triadic

#312D80

#80312D

#2D8031

Split Complementary

#312D80

#805A2D

#52802D

Tetradic

#312D80

#802D52

#7C802D

#2D805A

Color Blindness Simulation

Original

#312D80

Protanopia

#2F2F6C

Deuteranopia

#303067

Tritanopia

#315C59

Achromatopsia

#343434

CSS Usage

background-color: #312D80;
color: #312D80;
border-color: #312D80;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F4FA
100
#E7E6F4
200
#CCCAEC
300
#A7A4DF
400
#7873CE
500
#4842BD
600
#3A3597
700
#2E2A79
800
#24215E
900
#1E1C45
950
#13112C

Contrast Checker

Text on white

11.55:1

AA Pass AAA Pass

Text on black

1.82:1

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