#312B63

#312B63

Color Values

HEX

#312B63

RGB

49, 43, 99

HSL

246.4, 39.4%, 27.8%

HSV

246.4, 56.6%, 38.8%

CMYK

50.5%, 56.6%, 0.0%, 61.2%

OKLCH

0.3279 0.0955 284.7

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#312B63

#5D632B

Analogous

#2B4163

#4D2B63

#312B63

Triadic

#312B63

#63312B

#2B6331

Split Complementary

#312B63

#634D2B

#41632B

Tetradic

#312B63

#632B41

#5D632B

#2B634D

Color Blindness Simulation

Original

#312B63

Protanopia

#2E2E55

Deuteranopia

#2F2F52

Tritanopia

#314B48

Achromatopsia

#303030

CSS Usage

background-color: #312B63;
color: #312B63;
border-color: #312B63;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#D0CDE9
300
#AFAADA
400
#837BC6
500
#584DB2
600
#463E8E
700
#383172
800
#2C2759
900
#231F42
950
#161429

Contrast Checker

Text on white

12.68:1

AA Pass AAA Pass

Text on black

1.66:1

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