#303487

#303487

Color Values

HEX

#303487

RGB

48, 52, 135

HSL

237.2, 47.5%, 35.9%

HSV

237.2, 64.4%, 52.9%

CMYK

64.4%, 61.5%, 0.0%, 47.1%

OKLCH

0.3745 0.1362 275.6

Properties

Cool Dark Nearest: slateblue 4

Color Harmonies

Complementary

#303487

#878330

Analogous

#306087

#573087

#303487

Triadic

#303487

#873034

#348730

Split Complementary

#303487

#875730

#608730

Tetradic

#303487

#873060

#878330

#308757

Color Blindness Simulation

Original

#303487

Protanopia

#323273

Deuteranopia

#32316E

Tritanopia

#306360

Achromatopsia

#393939

CSS Usage

background-color: #303487;
color: #303487;
border-color: #303487;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CACCEC
300
#A5A7DF
400
#7478CD
500
#4349BC
600
#363A96
700
#2B2E78
800
#21245E
900
#1C1E45
950
#12132C

Contrast Checker

Text on white

10.68:1

AA Pass AAA Pass

Text on black

1.97:1

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