#1F278C

#1F278C

Color Values

HEX

#1F278C

RGB

31, 39, 140

HSL

235.6, 63.7%, 33.5%

HSV

235.6, 77.9%, 54.9%

CMYK

77.9%, 72.1%, 0.0%, 45.1%

OKLCH

0.3452 0.1636 270.8

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#1F278C

#8C841F

Analogous

#1F5D8C

#4D1F8C

#1F278C

Triadic

#1F278C

#8C1F27

#278C1F

Split Complementary

#1F278C

#8C4D1F

#5D8C1F

Tetradic

#1F278C

#8C1F5D

#8C841F

#1F8C4D

Color Blindness Simulation

Original

#1F278C

Protanopia

#222374

Deuteranopia

#22216E

Tritanopia

#1F605C

Achromatopsia

#2D2D2D

CSS Usage

background-color: #1F278C;
color: #1F278C;
border-color: #1F278C;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F3F4FB
100
#E3E5F7
200
#C5C8F2
300
#9BA1E9
400
#656DDD
500
#2E3AD1
600
#252FA7
700
#1E2586
800
#171D68
900
#15194C
950
#0D1030

Contrast Checker

Text on white

12.16:1

AA Pass AAA Pass

Text on black

1.73:1

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