#311751

#311751

Color Values

HEX

#311751

RGB

49, 23, 81

HSL

266.9, 55.8%, 20.4%

HSV

266.9, 71.6%, 31.8%

CMYK

39.5%, 71.6%, 0.0%, 68.2%

OKLCH

0.2765 0.1014 300.5

Properties

Cool Dark Nearest: RAL 5005 Signal Blue

Color Harmonies

Complementary

#311751

#375117

Analogous

#171A51

#4E1751

#311751

Triadic

#311751

#513117

#175131

Split Complementary

#311751

#514E17

#1A5117

Tetradic

#311751

#51171A

#375117

#17514E

Color Blindness Simulation

Original

#311751

Protanopia

#262643

Deuteranopia

#272940

Tritanopia

#303835

Achromatopsia

#212121

CSS Usage

background-color: #311751;
color: #311751;
border-color: #311751;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F7F4FB
100
#ECE5F6
200
#D9C7EF
300
#BEA0E4
400
#9B6CD5
500
#7838C7
600
#602D9F
700
#4D247F
800
#3C1C63
900
#2E1849
950
#1D0F2E

Contrast Checker

Text on white

15.31:1

AA Pass AAA Pass

Text on black

1.37:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

ม.ค. 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

ม.ค. 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

ม.ค. 15, 2026