#1F578F

#1F578F

Color Values

HEX

#1F578F

RGB

31, 87, 143

HSL

210.0, 64.4%, 34.1%

HSV

210.0, 78.3%, 56.1%

CMYK

78.3%, 39.2%, 0.0%, 43.9%

OKLCH

0.4497 0.1086 251.6

Properties

Cool Dark Nearest: dodgerblue 4

Color Harmonies

Complementary

#1F578F

#8F571F

Analogous

#1F8F8F

#1F1F8F

#1F578F

Triadic

#1F578F

#8F1F57

#578F1F

Split Complementary

#1F578F

#8F1F1F

#8F8F1F

Tetradic

#1F578F

#8F1F8F

#8F571F

#1F8F1F

Color Blindness Simulation

Original

#1F578F

Protanopia

#373881

Deuteranopia

#34307E

Tritanopia

#227774

Achromatopsia

#4F4F4F

CSS Usage

background-color: #1F578F;
color: #1F578F;
border-color: #1F578F;
Nearest Tailwind: Sky 700 #0369A1

Tailwind Shades

50
#F3F7FC
100
#E3EDF7
200
#C4DBF2
300
#9AC2E9
400
#64A1DD
500
#2D80D2
600
#2466A8
700
#1D5286
800
#174069
900
#14304D
950
#0D1F30

Contrast Checker

Text on white

7.45:1

AA Pass AAA Pass

Text on black

2.82:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026