#001BB3
Approximate name: Medium Blue
Technical formats
Color-space values for scientific work and cross-device comparison.
Practical formats
Ready to paste into CSS, Tailwind, iOS, Android, Flutter, and more.
Color analysis
Objective metrics: luminance, hue, saturation, temperature, and contrast.
Nearest name
MediumBlue
Relative luminance
0.04
Hue H
231°
Saturation S
100%
Lightness L
35%
Value V
70%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Blue
Contrast on white: 11.62:1 (AA body Pass / AAA Pass)
Contrast on black: 1.81:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#001bb3
Protanopia
#0c0c8e
Deuteranopia
#0a0885
Tritanopia
#01716b
Achromatopsia
#242424
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.