#1D3F61

#1D3F61

Color Values

HEX

#1D3F61

RGB

29, 63, 97

HSL

210.0, 54.0%, 24.7%

HSV

210.0, 70.1%, 38.0%

CMYK

70.1%, 35.1%, 0.0%, 62.0%

OKLCH

0.3598 0.0714 250.4

Properties

Cool Dark Nearest: RAL 5000 Violet Blue

Color Harmonies

Complementary

#1D3F61

#613F1D

Analogous

#1D6161

#1D1D61

#1D3F61

Triadic

#1D3F61

#611D3F

#3F611D

Split Complementary

#1D3F61

#611D1D

#61611D

Tetradic

#1D3F61

#611D61

#613F1D

#1D611D

Color Blindness Simulation

Original

#1D3F61

Protanopia

#2C2C59

Deuteranopia

#2A2757

Tritanopia

#1F5251

Achromatopsia

#3A3A3A

CSS Usage

background-color: #1D3F61;
color: #1D3F61;
border-color: #1D3F61;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F4F7FB
100
#E5EDF5
200
#C8DBEF
300
#A1C2E3
400
#6EA1D4
500
#3B80C4
600
#2F669D
700
#26527E
800
#1D4062
900
#193048
950
#101F2D

Contrast Checker

Text on white

10.85:1

AA Pass AAA Pass

Text on black

1.94:1

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