#281F71

#281F71

Color Values

HEX

#281F71

RGB

40, 31, 113

HSL

246.6, 56.9%, 28.2%

HSV

246.6, 72.6%, 44.3%

CMYK

64.6%, 72.6%, 0.0%, 55.7%

OKLCH

0.31 0.1344 280.1

Properties

Cool Dark Nearest: midnightblue

Color Harmonies

Complementary

#281F71

#68711F

Analogous

#1F3F71

#511F71

#281F71

Triadic

#281F71

#71281F

#1F7128

Split Complementary

#281F71

#71511F

#3F711F

Tetradic

#281F71

#711F3F

#68711F

#1F7151

Color Blindness Simulation

Original

#281F71

Protanopia

#24245D

Deuteranopia

#252558

Tritanopia

#284D4A

Achromatopsia

#272727

CSS Usage

background-color: #281F71;
color: #281F71;
border-color: #281F71;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F4F4FB
100
#E6E5F6
200
#CBC7F0
300
#A79FE5
400
#776BD6
500
#4737C8
600
#392CA0
700
#2D2380
800
#231B64
900
#1D1849
950
#120F2E

Contrast Checker

Text on white

13.77:1

AA Pass AAA Pass

Text on black

1.52:1

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