#1F4F7B

#1F4F7B

Color Values

HEX

#1F4F7B

RGB

31, 79, 123

HSL

208.7, 59.7%, 30.2%

HSV

208.7, 74.8%, 48.2%

CMYK

74.8%, 35.8%, 0.0%, 51.8%

OKLCH

0.4174 0.09 249.2

Properties

Cool Dark Nearest: RAL 5019 Capri Blue

Color Harmonies

Complementary

#1F4F7B

#7B4B1F

Analogous

#1F7B79

#1F217B

#1F4F7B

Triadic

#1F4F7B

#7B1F4F

#4F7B1F

Split Complementary

#1F4F7B

#7B1F21

#7B791F

Tetradic

#1F4F7B

#791F7B

#7B4B1F

#217B1F

Color Blindness Simulation

Original

#1F4F7B

Protanopia

#343470

Deuteranopia

#312D6E

Tritanopia

#216866

Achromatopsia

#484848

CSS Usage

background-color: #1F4F7B;
color: #1F4F7B;
border-color: #1F4F7B;
Nearest Tailwind: Sky 800 #075985

Tailwind Shades

50
#F3F8FB
100
#E4EEF6
200
#C6DCF1
300
#9DC3E6
400
#68A3D9
500
#3383CC
600
#2969A3
700
#215482
800
#1A4166
900
#16324A
950
#0E1F2F

Contrast Checker

Text on white

8.53:1

AA Pass AAA Pass

Text on black

2.46:1

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