#18E78A
Approximate name: Medium Spring Green
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
MediumSpringGreen
Relative luminance
0.592
Hue H
153°
Saturation S
81%
Lightness L
50%
Value V
91%
Temperature
Cool
Brightness
Medium
Chroma
Vivid
Hue family
Green
Contrast on white: 1.64:1 (AA body Fail / AAA Fail)
Contrast on black: 12.84:1 (AA body Pass / AAA Pass)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#18e78a
Protanopia
#7273a0
Deuteranopia
#6656a6
Tritanopia
#22b2b6
Achromatopsia
#9f9f9f
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.