#031338

#031338

Color Values

HEX

#031338

RGB

3, 19, 56

HSL

221.9, 89.8%, 11.6%

HSV

221.9, 94.6%, 22.0%

CMYK

94.6%, 66.1%, 0.0%, 78.0%

OKLCH

0.2011 0.0761 262.1

Properties

Cool Dark Nearest: RAL 5002 Ultramarine Blue

Color Harmonies

Complementary

#031338

#382803

Analogous

#032E38

#0E0338

#031338

Triadic

#031338

#380313

#133803

Split Complementary

#031338

#380E03

#2E3803

Tetradic

#031338

#38032E

#382803

#03380E

Color Blindness Simulation

Original

#031338

Protanopia

#0A0A2F

Deuteranopia

#09082D

Tritanopia

#042826

Achromatopsia

#121212

CSS Usage

background-color: #031338;
color: #031338;
border-color: #031338;
Nearest Tailwind: Indigo 950 #1E1B4B

Tailwind Shades

50
#F2F5FD
100
#E0E8FB
200
#BBCFFB
300
#8BACF9
400
#4C7FF5
500
#0D52F2
600
#0A42C2
700
#08359B
800
#072979
900
#092158
950
#061537

Contrast Checker

Text on white

18.2:1

AA Pass AAA Pass

Text on black

1.15:1

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