#001D8B

#001D8B

Color Values

HEX

#001D8B

RGB

0, 29, 139

HSL

227.5, 100.0%, 27.3%

HSV

227.5, 100.0%, 54.5%

CMYK

100.0%, 79.1%, 0.0%, 45.5%

OKLCH

0.317 0.1799 263.9

Properties

Cool Dark Nearest: navy

Color Harmonies

Complementary

#001D8B

#8B6E00

Analogous

#00638B

#29008B

#001D8B

Triadic

#001D8B

#8B001D

#1D8B00

Split Complementary

#001D8B

#8B2900

#638B00

Tetradic

#001D8B

#8B0063

#8B6E00

#008B29

Color Blindness Simulation

Original

#001D8B

Protanopia

#0D0D70

Deuteranopia

#0B096A

Tritanopia

#015B57

Achromatopsia

#1F1F1F

CSS Usage

background-color: #001D8B;
color: #001D8B;
border-color: #001D8B;
Nearest Tailwind: Indigo 800 #3730A3

Tailwind Shades

50
#F1F4FE
100
#DEE4FC
200
#B8C6FF
300
#859EFF
400
#426AFF
500
#0035FF
600
#002BCC
700
#0022A3
800
#001B80
900
#05175C
950
#030F3A

Contrast Checker

Text on white

13.56:1

AA Pass AAA Pass

Text on black

1.55:1

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