#1D1F4F

#1D1F4F

Color Values

HEX

#1D1F4F

RGB

29, 31, 79

HSL

237.6, 46.3%, 21.2%

HSV

237.6, 63.3%, 31.0%

CMYK

63.3%, 60.8%, 0.0%, 69.0%

OKLCH

0.2686 0.0865 277.1

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#1D1F4F

#4F4D1D

Analogous

#1D384F

#341D4F

#1D1F4F

Triadic

#1D1F4F

#4F1D1F

#1F4F1D

Split Complementary

#1D1F4F

#4F341D

#384F1D

Tetradic

#1D1F4F

#4F1D38

#4F4D1D

#1D4F34

Color Blindness Simulation

Original

#1D1F4F

Protanopia

#1E1E43

Deuteranopia

#1E1E41

Tritanopia

#1D3A38

Achromatopsia

#222222

CSS Usage

background-color: #1D1F4F;
color: #1D1F4F;
border-color: #1D1F4F;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F4F5FA
100
#E6E7F4
200
#CBCCEC
300
#A5A8DE
400
#7578CC
500
#4449BB
600
#373B95
700
#2C2F77
800
#22255D
900
#1C1E45
950
#12132B

Contrast Checker

Text on white

15.43:1

AA Pass AAA Pass

Text on black

1.36:1

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