#312A8F

#312A8F

Color Values

HEX

#312A8F

RGB

49, 42, 143

HSL

244.2, 54.6%, 36.3%

HSV

244.2, 70.6%, 56.1%

CMYK

65.7%, 70.6%, 0.0%, 43.9%

OKLCH

0.365 0.1595 278.0

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#312A8F

#888F2A

Analogous

#2A558F

#642A8F

#312A8F

Triadic

#312A8F

#8F312A

#2A8F31

Split Complementary

#312A8F

#8F642A

#558F2A

Tetradic

#312A8F

#8F2A55

#888F2A

#2A8F64

Color Blindness Simulation

Original

#312A8F

Protanopia

#2E2E77

Deuteranopia

#2E2F71

Tritanopia

#31635F

Achromatopsia

#333333

CSS Usage

background-color: #312A8F;
color: #312A8F;
border-color: #312A8F;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F4F4FB
100
#E6E5F5
200
#CBC8EF
300
#A5A0E3
400
#746DD4
500
#443AC5
600
#362E9E
700
#2B257E
800
#221D63
900
#1C1948
950
#12102E

Contrast Checker

Text on white

11.3:1

AA Pass AAA Pass

Text on black

1.86:1

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