#312A7C

#312A7C

Color Values

HEX

#312A7C

RGB

49, 42, 124

HSL

245.1, 49.4%, 32.5%

HSV

245.1, 66.1%, 48.6%

CMYK

60.5%, 66.1%, 0.0%, 51.4%

OKLCH

0.347 0.1337 280.7

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#312A7C

#757C2A

Analogous

#2A4C7C

#5A2A7C

#312A7C

Triadic

#312A7C

#7C312A

#2A7C31

Split Complementary

#312A7C

#7C5A2A

#4C7C2A

Tetradic

#312A7C

#7C2A4C

#757C2A

#2A7C5A

Color Blindness Simulation

Original

#312A7C

Protanopia

#2E2E68

Deuteranopia

#2E2F63

Tritanopia

#315855

Achromatopsia

#313131

CSS Usage

background-color: #312A7C;
color: #312A7C;
border-color: #312A7C;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F5F4FB
100
#E7E6F5
200
#CDCAED
300
#A9A4E0
400
#7A72CF
500
#4B41BE
600
#3C3498
700
#30297A
800
#26205F
900
#1F1B46
950
#13112C

Contrast Checker

Text on white

11.98:1

AA Pass AAA Pass

Text on black

1.75:1

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