#312C66

#312C66

Color Values

HEX

#312C66

RGB

49, 44, 102

HSL

245.2, 39.7%, 28.6%

HSV

245.2, 56.9%, 40.0%

CMYK

52.0%, 56.9%, 0.0%, 60.0%

OKLCH

0.3323 0.0985 283.5

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#312C66

#61662C

Analogous

#2C4466

#4E2C66

#312C66

Triadic

#312C66

#66312C

#2C6631

Split Complementary

#312C66

#664E2C

#44662C

Tetradic

#312C66

#662C44

#61662C

#2C664E

Color Blindness Simulation

Original

#312C66

Protanopia

#2F2F58

Deuteranopia

#2F3055

Tritanopia

#314D4A

Achromatopsia

#313131

CSS Usage

background-color: #312C66;
color: #312C66;
border-color: #312C66;
Nearest Tailwind: Blue 950 #172554

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#D0CDE9
300
#AEAADA
400
#827BC6
500
#564DB2
600
#453E8E
700
#373172
800
#2B2659
900
#221F42
950
#16142A

Contrast Checker

Text on white

12.48:1

AA Pass AAA Pass

Text on black

1.68:1

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