#1F405E

#1F405E

Color Values

HEX

#1F405E

RGB

31, 64, 94

HSL

208.6, 50.4%, 24.5%

HSV

208.6, 67.0%, 36.9%

CMYK

67.0%, 31.9%, 0.0%, 63.1%

OKLCH

0.3615 0.0651 248.0

Properties

Cool Dark Nearest: RAL 5020 Ocean Blue

Color Harmonies

Complementary

#1F405E

#5E3D1F

Analogous

#1F5E5C

#1F205E

#1F405E

Triadic

#1F405E

#5E1F40

#405E1F

Split Complementary

#1F405E

#5E1F20

#5E5C1F

Tetradic

#1F405E

#5C1F5E

#5E3D1F

#205E1F

Color Blindness Simulation

Original

#1F405E

Protanopia

#2D2E57

Deuteranopia

#2B2955

Tritanopia

#215150

Achromatopsia

#3B3B3B

CSS Usage

background-color: #1F405E;
color: #1F405E;
border-color: #1F405E;
Nearest Tailwind: Sky 900 #0C4A6E

Tailwind Shades

50
#F4F8FB
100
#E6EEF5
200
#C9DCED
300
#A3C3E1
400
#71A3D0
500
#3F82C0
600
#336899
700
#28547B
800
#204160
900
#1A3146
950
#111F2C

Contrast Checker

Text on white

10.75:1

AA Pass AAA Pass

Text on black

1.95:1

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