#312C99

#312C99

Color Values

HEX

#312C99

RGB

49, 44, 153

HSL

242.8, 55.3%, 38.6%

HSV

242.8, 71.2%, 60.0%

CMYK

68.0%, 71.2%, 0.0%, 40.0%

OKLCH

0.378 0.1703 276.5

Properties

Cool Dark Nearest: NCS S 2050-R70B Violet

Color Harmonies

Complementary

#312C99

#94992C

Analogous

#2C5D99

#682C99

#312C99

Triadic

#312C99

#99312C

#2C9931

Split Complementary

#312C99

#99682C

#5D992C

Tetradic

#312C99

#992C5D

#94992C

#2C9968

Color Blindness Simulation

Original

#312C99

Protanopia

#2F2F7F

Deuteranopia

#2F3078

Tritanopia

#316A65

Achromatopsia

#353535

CSS Usage

background-color: #312C99;
color: #312C99;
border-color: #312C99;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FB
100
#E6E5F6
200
#C9C8EF
300
#A3A0E4
400
#716CD5
500
#4039C6
600
#332E9E
700
#29247F
800
#201C63
900
#1B1849
950
#110F2E

Contrast Checker

Text on white

10.76:1

AA Pass AAA Pass

Text on black

1.95:1

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